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Merge branch 'jwmelto-feature/signal_source_interface' into next

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Carles Fernandez 2021-02-18 09:03:39 +01:00
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3
docs/changelog.md
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@ -36,6 +36,9 @@ SPDX-FileCopyrightText: 2011-2021 Carles Fernandez-Prades <carles.fernandez@cttc
asking them to sign the CLA document).
- Improved handling of change in GNU Radio 3.9 FFT API.
- Improved handling of the filesystem library.
- Added an abstract class `SignalSourceInterface` and a common base class
`SignalSourceBase`, which allow to remove a lot of duplicated code in Signal
Source blocks, and further abstract file-based interfaces behind them.
- Do not apply clang-tidy fixes to protobuf-generated headers.
- Refactored private implementation of flow graph connection and disconnection
for improved source code readability.

2
src/algorithms/libs/CMakeLists.txt
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@ -31,6 +31,7 @@ set(GNSS_SPLIBS_SOURCES
item_type_helpers.cc
pass_through.cc
short_x2_to_cshort.cc
gnss_sdr_string_literals.cc
)
set(GNSS_SPLIBS_HEADERS
@ -61,6 +62,7 @@ set(GNSS_SPLIBS_HEADERS
item_type_helpers.h
pass_through.h
short_x2_to_cshort.h
gnss_sdr_string_literals.h
)
if(ENABLE_OPENCL)

37
src/algorithms/libs/gnss_sdr_string_literals.cc Normal file
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@ -0,0 +1,37 @@
/*!
* \file gnss_sdr_string_literals.cc
* \brief This file implements the ""s operator for std::string in C++11, and
* puts it into the std::string_literals namespace. This is already implemented
* in C++14, so this is only compiled when using C++11. The .cc file is required
* for avoiding the duplication of symbols.
*
* \author Carles Fernandez-Prades, 2021. cfernandez(at)cttc.es
*
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "gnss_sdr_string_literals.h"
#if __cplusplus == 201103L
namespace std
{
namespace string_literals
{
std::string operator"" s(const char* str, std::size_t len)
{
return std::string(str, len);
};
} // namespace string_literals
} // namespace std
#endif // __cplusplus == 201103L

48
src/algorithms/libs/gnss_sdr_string_literals.h Normal file
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@ -0,0 +1,48 @@
/*!
* \file gnss_sdr_string_literals.h
* \brief This file implements the ""s operator for std::string in C++11, and
* puts it into the std::string_literals namespace. This is already implemented
* in C++14, so this is only compiled when using C++11. The .cc file is required
* for avoiding the duplication of symbols.
*
* \author Carles Fernandez-Prades, 2021. cfernandez(at)cttc.es
*
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_STRING_LITERALS_H
#define GNSS_SDR_STRING_LITERALS_H
/** \addtogroup Algorithms_Library
* \{ */
/** \addtogroup Algorithm_libs algorithms_libs
* \{ */
#if __cplusplus == 201103L
#include <cstddef>
#include <string>
namespace std
{
namespace string_literals
{
std::string operator"" s(const char* str, std::size_t len);
} // namespace string_literals
} // namespace std
#endif // __cplusplus == 201103L
/** \} */
/** \} */
#endif // GNSS_SDR_STRING_LITERALS_H

5
src/algorithms/signal_source/adapters/CMakeLists.txt
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@ -92,6 +92,8 @@ endif()
set(SIGNAL_SOURCE_ADAPTER_SOURCES
signal_source_base.cc
file_source_base.cc
file_signal_source.cc
multichannel_file_signal_source.cc
gen_signal_source.cc
@ -106,6 +108,8 @@ set(SIGNAL_SOURCE_ADAPTER_SOURCES
)
set(SIGNAL_SOURCE_ADAPTER_HEADERS
signal_source_base.h
file_source_base.h
file_signal_source.h
multichannel_file_signal_source.h
gen_signal_source.h
@ -156,6 +160,7 @@ target_link_libraries(signal_source_adapters
Gnuradio::blocks
signal_source_gr_blocks
PRIVATE
algorithms_libs
gnss_sdr_flags
core_system_parameters
Glog::glog

6
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
View File

@ -25,6 +25,7 @@
#include "ad9361_manager.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_string_literals.h"
#include "uio_fpga.h"
#include <glog/logging.h>
#include <iio.h>
@ -42,9 +43,12 @@
#include <vector>
using namespace std::string_literals;
Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(const ConfigurationInterface *configuration,
const std::string &role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t> *queue __attribute__((unused))) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t> *queue __attribute__((unused)))
: SignalSourceBase(configuration, role, "Ad9361_Fpga_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_gain_mode("slow_attack");
const double default_tx_attenuation_db = -10.0;

18
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
View File

@ -23,6 +23,7 @@
#include "fpga_dynamic_bit_selection.h"
#include "fpga_switch.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <pmt/pmt.h>
#include <cstdint>
#include <memory>
@ -39,7 +40,7 @@
class ConfigurationInterface;
class Ad9361FpgaSignalSource : public GNSSBlockInterface
class Ad9361FpgaSignalSource : public SignalSourceBase
{
public:
Ad9361FpgaSignalSource(const ConfigurationInterface *configuration,
@ -50,19 +51,6 @@ public:
void start() override;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Ad9361_Fpga_Signal_Source"
*/
inline std::string implementation() override
{
return "Ad9361_Fpga_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -100,8 +88,6 @@ private:
std::shared_ptr<Fpga_dynamic_bit_selection> dynamic_bit_selection_fpga;
std::shared_ptr<Fpga_buffer_monitor> buffer_monitor_fpga;
std::string role_;
// Front-end settings
std::string gain_mode_rx1_;
std::string gain_mode_rx2_;

6
src/algorithms/signal_source/adapters/custom_udp_signal_source.cc
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@ -17,13 +17,17 @@
#include "custom_udp_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <iostream>
using namespace std::string_literals;
CustomUDPSignalSource::CustomUDPSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue __attribute__((unused))) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue __attribute__((unused)))
: SignalSourceBase(configuration, role, "Custom_UDP_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
// DUMP PARAMETERS
const std::string default_dump_file("./data/signal_source.dat");

18
src/algorithms/signal_source/adapters/custom_udp_signal_source.h
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@ -19,8 +19,8 @@
#define GNSS_SDR_CUSTOM_UDP_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "gr_complex_ip_packet_source.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/null_sink.h>
#include <pmt/pmt.h>
@ -40,7 +40,7 @@ class ConfigurationInterface;
* \brief This class reads from UDP packets, which streams interleaved
* I/Q samples over a network.
*/
class CustomUDPSignalSource : public GNSSBlockInterface
class CustomUDPSignalSource : public SignalSourceBase
{
public:
CustomUDPSignalSource(const ConfigurationInterface* configuration,
@ -49,19 +49,6 @@ public:
~CustomUDPSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Custom_UDP_Signal_Source"
*/
inline std::string implementation() override
{
return "Custom_UDP_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -78,7 +65,6 @@ private:
std::vector<gnss_shared_ptr<gr::block>> null_sinks_;
std::vector<gnss_shared_ptr<gr::block>> file_sink_;
std::string role_;
std::string item_type_;
std::string dump_filename_;

332
src/algorithms/signal_source/adapters/file_signal_source.cc
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@ -10,343 +10,29 @@
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_valve.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <exception>
#include <fstream>
#include <iomanip>
#include <iostream> // for std::cerr
#include <utility>
using namespace std::string_literals;
FileSignalSource::FileSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_streams_(in_streams), out_streams_(out_streams)
FileSignalSource::FileSignalSource(ConfigurationInterface const* configuration,
std::string const& role, unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue)
: FileSourceBase(configuration, role, "File_Signal_Source"s, queue, "short"s)
{
const std::string default_filename("./example_capture.dat");
const std::string default_item_type("short");
const std::string default_dump_filename("./my_capture.dat");
const double default_seconds_to_skip = 0.0;
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
filename_ = configuration->property(role + ".filename", default_filename);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename_ = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_ = FLAGS_s;
}
item_type_ = configuration->property(role + ".item_type", default_item_type);
repeat_ = configuration->property(role + ".repeat", false);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
const double seconds_to_skip = configuration->property(role + ".seconds_to_skip", default_seconds_to_skip);
const size_t header_size = configuration->property(role + ".header_size", 0);
int64_t samples_to_skip = 0;
bool is_complex = false;
if (item_type_ == "gr_complex")
{
item_size_ = sizeof(gr_complex);
}
else if (item_type_ == "float")
{
item_size_ = sizeof(float);
}
else if (item_type_ == "short")
{
item_size_ = sizeof(int16_t);
}
else if (item_type_ == "ishort")
{
item_size_ = sizeof(int16_t);
is_complex = true;
}
else if (item_type_ == "byte")
{
item_size_ = sizeof(int8_t);
}
else if (item_type_ == "ibyte")
{
item_size_ = sizeof(int8_t);
is_complex = true;
}
else
{
LOG(WARNING) << item_type_
<< " unrecognized item type. Using gr_complex.";
item_size_ = sizeof(gr_complex);
}
try
{
file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
if (seconds_to_skip > 0)
{
samples_to_skip = static_cast<int64_t>(seconds_to_skip * sampling_frequency_);
if (is_complex)
{
samples_to_skip *= 2;
}
}
if (header_size > 0)
{
samples_to_skip += header_size;
}
if (samples_to_skip > 0)
{
LOG(INFO) << "Skipping " << samples_to_skip << " samples of the input file";
if (not file_source_->seek(samples_to_skip, SEEK_SET))
{
LOG(INFO) << "Error skipping bytes!";
}
}
}
catch (const std::exception& e)
{
if (filename_ == default_filename)
{
std::cerr
<< "The configuration file has not been found.\n"
<< "Please create a configuration file based on the examples at the 'conf/' folder\n"
<< "and then generate your own GNSS Software Defined Receiver by doing:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n";
}
else
{
std::cerr
<< "The receiver was configured to work with a file signal source\n"
<< "but the specified file is unreachable by GNSS-SDR.\n"
<< "Please modify your configuration file\n"
<< "and point SignalSource.filename to a valid raw data file. Then:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
<< "Examples of configuration files available at:\n"
<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n";
}
LOG(INFO) << "file_signal_source: Unable to open the samples file "
<< filename_.c_str() << ", exiting the program.";
throw(e);
}
DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
if (samples_ == 0) // read all file
{
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding the last 100 milliseconds, and enable always the
* valve block
*/
std::ifstream file(filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
DLOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size_));
}
else
{
std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename_ << ", which contains " << static_cast<double>(size) << " [bytes]\n";
std::cout.precision(ss);
if (size > 0)
{
const int64_t bytes_to_skip = samples_to_skip * item_size_;
const int64_t bytes_to_process = static_cast<int64_t>(size) - bytes_to_skip;
samples_ = floor(static_cast<double>(bytes_to_process) / static_cast<double>(item_size_) - ceil(0.002 * static_cast<double>(sampling_frequency_))); // process all the samples available in the file excluding at least the last 1 ms
}
}
CHECK(samples_ > 0) << "File does not contain enough samples to process.";
double signal_duration_s = static_cast<double>(samples_) * (1 / static_cast<double>(sampling_frequency_));
if (is_complex)
{
signal_duration_s /= 2.0;
}
DLOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
valve_ = gnss_sdr_make_valve(item_size_, samples_, queue);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
if (dump_)
{
sink_ = gr::blocks::file_sink::make(item_size_, dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
}
if (enable_throttle_control_)
{
throttle_ = gr::blocks::throttle::make(item_size_, sampling_frequency_);
}
DLOG(INFO) << "File source filename " << filename_;
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
DLOG(INFO) << "Item type " << item_type_;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
DLOG(INFO) << "Dump " << dump_;
DLOG(INFO) << "Dump filename " << dump_filename_;
if (in_streams_ > 0)
if (in_streams > 0)
{
LOG(ERROR) << "A signal source does not have an input stream";
}
if (out_streams_ > 1)
if (out_streams > 1)
{
LOG(ERROR) << "This implementation only supports one output stream";
}
}
void FileSignalSource::connect(gr::top_block_sptr top_block)
{
if (samples_ > 0)
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
top_block->connect(throttle_, 0, valve_, 0);
DLOG(INFO) << "connected throttle to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
else
{
top_block->connect(file_source_, 0, valve_, 0);
DLOG(INFO) << "connected file source to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
}
else
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
if (dump_)
{
top_block->connect(file_source_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
else
{
if (dump_)
{
top_block->connect(file_source_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
}
}
void FileSignalSource::disconnect(gr::top_block_sptr top_block)
{
if (samples_ > 0)
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, throttle_, 0);
DLOG(INFO) << "disconnected file source to throttle";
top_block->disconnect(throttle_, 0, valve_, 0);
DLOG(INFO) << "disconnected throttle to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
else
{
top_block->disconnect(file_source_, 0, valve_, 0);
DLOG(INFO) << "disconnected file source to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
}
else
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, throttle_, 0);
DLOG(INFO) << "disconnected file source to throttle";
if (dump_)
{
top_block->disconnect(file_source_, 0, sink_, 0);
DLOG(INFO) << "disconnected file source to sink";
}
}
else
{
if (dump_)
{
top_block->disconnect(file_source_, 0, sink_, 0);
DLOG(INFO) << "disconnected file source to sink";
}
}
}
}
gr::basic_block_sptr FileSignalSource::get_left_block()
{
LOG(WARNING) << "Left block of a signal source should not be retrieved";
return gr::blocks::file_source::sptr();
}
gr::basic_block_sptr FileSignalSource::get_right_block()
{
if (samples_ > 0)
{
return valve_;
}
if (enable_throttle_control_ == true)
{
return throttle_;
}
return file_source_;
}

82
src/algorithms/signal_source/adapters/file_signal_source.h
View File

@ -21,15 +21,7 @@
#ifndef GNSS_SDR_FILE_SIGNAL_SOURCE_H
#define GNSS_SDR_FILE_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
#include <cstdint>
#include <string>
#include "file_source_base.h"
/** \addtogroup Signal_Source Signal Source
* Classes for Signal Source management.
@ -45,84 +37,16 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from a file
* and adapts it to a SignalSourceInterface
*/
class FileSignalSource : public GNSSBlockInterface
class FileSignalSource : public FileSourceBase
{
public:
FileSignalSource(const ConfigurationInterface* configuration, const std::string& role,
FileSignalSource(ConfigurationInterface const* configuration, std::string const& role,
unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue);
~FileSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "File_Signal_Source".
*/
inline std::string implementation() override
{
return "File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
inline std::string filename() const
{
return filename_;
}
inline std::string item_type() const
{
return item_type_;
}
inline bool repeat() const
{
return repeat_;
}
inline int64_t sampling_frequency() const
{
return sampling_frequency_;
}
inline uint64_t samples() const
{
return samples_;
}
private:
gr::blocks::file_source::sptr file_source_;
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr sink_;
gr::blocks::throttle::sptr throttle_;
std::string role_;
std::string item_type_;
std::string filename_;
std::string dump_filename_;
uint64_t samples_;
int64_t sampling_frequency_;
size_t item_size_;
uint32_t in_streams_;
uint32_t out_streams_;
bool enable_throttle_control_;
bool repeat_;
bool dump_;
};

506
src/algorithms/signal_source/adapters/file_source_base.cc Normal file
View File

@ -0,0 +1,506 @@
/*!
* \file file_source_base.cc
* \brief Implementation of the base class for file-oriented signal_source GNSS blocks
* \author Jim Melton, 2021. jim.melton(at)sncorp.com
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "file_source_base.h"
#include "configuration_interface.h"
#include "gnss_sdr_filesystem.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <cmath> // ceil, floor
#include <fstream>
#include <utility> // move
using namespace std::string_literals;
FileSourceBase::FileSourceBase(ConfigurationInterface const* configuration, std::string const& role, std::string impl,
Concurrent_Queue<pmt::pmt_t>* queue,
std::string default_item_type)
: SignalSourceBase(configuration, role, std::move(impl)), filename_(configuration->property(role + ".filename"s, "../data/example_capture.dat"s)),
file_source_(), // NOLINT
item_type_(configuration->property(role + ".item_type"s, default_item_type)), // NOLINT
item_size_(0),
is_complex_(false),
// apparently, MacOS (LLVM) finds 0UL ambiguous with bool, int64_t, uint64_t, int32_t, int16_t, uint16_t,... float, double
header_size_(configuration->property(role + ".header_size"s, uint64_t(0))),
seconds_to_skip_(configuration->property(role + ".seconds_to_skip"s, 0.0)),
repeat_(configuration->property(role + ".repeat"s, false)),
samples_(configuration->property(role + ".samples"s, uint64_t(0))),
sampling_frequency_(configuration->property(role + ".sampling_frequency"s, int64_t(0))),
valve_(), // NOLINT
queue_(queue),
enable_throttle_control_(configuration->property(role + ".enable_throttle_control"s, false)),
throttle_(), // NOLINT
dump_(configuration->property(role + ".dump"s, false)),
dump_filename_(configuration->property(role + ".dump_filename"s, "../data/my_capture.dat"s)),
sink_() // NOLINT
{
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename_ = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_ = FLAGS_s;
}
}
void FileSourceBase::init()
{
create_file_source();
// At this point, we know that the file exists
samples_ = computeSamplesInFile();
auto signal_duration_s = 1.0 * samples_ / sampling_frequency_;
if (is_complex())
{
signal_duration_s /= 2.0;
}
DLOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
DLOG(INFO) << "File source filename " << filename_;
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
DLOG(INFO) << "Item type " << item_type_;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
DLOG(INFO) << "Dump " << dump_;
DLOG(INFO) << "Dump filename " << dump_filename_;
create_throttle();
create_valve();
create_sink();
}
void FileSourceBase::connect(gr::top_block_sptr top_block)
{
init();
pre_connect_hook(top_block);
auto input = gr::basic_block_sptr();
auto output = gr::basic_block_sptr();
// THROTTLE
if (throttle())
{
// if we are throttling...
top_block->connect(source(), 0, throttle(), 0);
DLOG(INFO) << "connected file source to throttle";
input = throttle();
}
else
{
// no throttle; let 'er rip
input = source();
}
// VALVE
if (valve())
{
top_block->connect(input, 0, valve(), 0);
DLOG(INFO) << "connected source to valve";
output = valve();
}
else
{
// TODO: dumping a file source is unlikely, but should this be the raw file source or the
// throttle if there is one? I'm leaning towards "output=input"
output = source(); // output = input;
}
// DUMP
if (sink())
{
top_block->connect(output, 0, sink(), 0);
DLOG(INFO) << "connected output to file sink";
}
post_connect_hook(top_block);
}
void FileSourceBase::disconnect(gr::top_block_sptr top_block)
{
auto input = gr::basic_block_sptr();
auto output = gr::basic_block_sptr();
pre_disconnect_hook(top_block);
// THROTTLE
if (throttle())
{
// if we are throttling...
top_block->disconnect(source(), 0, throttle(), 0);
DLOG(INFO) << "disconnected file source from throttle";
input = throttle();
}
else
{
// no throttle; let 'er rip
input = source();
}
// VALVE
if (valve())
{
top_block->disconnect(input, 0, valve(), 0);
DLOG(INFO) << "disconnected source to valve";
output = valve();
}
else
{
// TODO: dumping a file source is unlikely, but should this be the raw file source or the
// throttle if there is one? I'm leaning towards "output=input"
output = source(); // output = input;
}
// DUMP
if (sink())
{
top_block->disconnect(output, 0, sink(), 0);
DLOG(INFO) << "disconnected output to file sink";
}
post_disconnect_hook(top_block);
}
gr::basic_block_sptr FileSourceBase::get_left_block()
{
// TODO: is this right? Shouldn't the left block be a nullptr?
LOG(WARNING) << "Left block of a signal source should not be retrieved";
return gr::blocks::file_source::sptr();
}
gr::basic_block_sptr FileSourceBase::get_right_block()
{
// clang-tidy wants braces around the if-conditions. clang-format wants to break the braces into
// multiple line blocks. It's much more readable this way
// clang-format off
if (valve_) { return valve_; }
if (throttle_) { return throttle_; }
return source();
// clang-format on
}
std::string FileSourceBase::filename() const
{
return filename_;
}
std::string FileSourceBase::item_type() const
{
return item_type_;
}
size_t FileSourceBase::item_size()
{
return item_size_;
}
size_t FileSourceBase::item_size() const
{
return item_size_;
}
bool FileSourceBase::repeat() const
{
return repeat_;
}
int64_t FileSourceBase::sampling_frequency() const
{
return sampling_frequency_;
}
uint64_t FileSourceBase::samples() const
{
return samples_;
}
std::tuple<size_t, bool> FileSourceBase::itemTypeToSize()
{
auto is_complex_t = false;
auto item_size = size_t(0);
if (item_type_ == "gr_complex")
{
item_size = sizeof(gr_complex);
}
else if (item_type_ == "float")
{
item_size = sizeof(float);
}
else if (item_type_ == "short")
{
item_size = sizeof(int16_t);
}
else if (item_type_ == "ishort")
{
item_size = sizeof(int16_t);
is_complex_t = true;
}
else if (item_type_ == "byte")
{
item_size = sizeof(int8_t);
}
else if (item_type_ == "ibyte")
{
item_size = sizeof(int8_t);
is_complex_t = true;
}
else
{
LOG(WARNING) << item_type_
<< " unrecognized item type. Using gr_complex.";
item_size = sizeof(gr_complex);
}
return std::make_tuple(item_size, is_complex_t);
}
// Default case is one decoded packet per one read sample
double FileSourceBase::packetsPerSample() const { return 1.0; }
size_t FileSourceBase::samplesToSkip() const
{
auto samples_to_skip = size_t(0);
if (seconds_to_skip_ > 0)
{
// sampling_frequency is in terms of actual samples (output packets). If this source is
// compressed, there may be multiple packets per file (read) sample. First compute the
// actual number of samples to skip (function of time and sample rate)
samples_to_skip = static_cast<size_t>(seconds_to_skip_ * sampling_frequency_);
// convert from sample to input items, scaling this value to input item space
// (rounding up)
samples_to_skip = std::ceil(samples_to_skip / packetsPerSample());
// complex inputs require two input items for one sample (arguably, packetsPerSample could be scaled by 0.5)
if (is_complex())
{
samples_to_skip *= 2;
}
}
if (header_size_ > 0)
{
samples_to_skip += header_size_;
}
return samples_to_skip;
}
size_t FileSourceBase::computeSamplesInFile() const
{
auto n_samples = size_t(samples());
// if configured with 0 samples (read the whole file), figure out how many samples are in the file, and go from there
if (n_samples == 0)
{
// this could throw, but the existence of the file has been proven before we get here.
auto size = fs::file_size(filename());
// if there is some kind of compression/encoding, figure out the uncompressed number of samples
n_samples = std::floor(packetsPerSample() * size / item_size());
auto to_skip = samplesToSkip();
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding at least
* the last 2 milliseconds, and enable always the valve block
*/
auto tail = static_cast<size_t>(std::ceil(0.002 * sampling_frequency()));
DLOG(INFO) << "Total samples in the file= " << n_samples;
std::cout << "Processing file " << filename() << ", which contains " << n_samples << " samples (" << size << " bytes)\n";
if (n_samples > (to_skip + tail))
{
// process all the samples available in the file excluding up to the last 2 ms
n_samples -= to_skip + tail;
}
else
{
// this will terminate the program
LOG(FATAL) << "Skipping " << to_skip << " samples from the front and truncating 2ms (" << tail << " samples)\n"
<< "is greater than the number of samples in the file (" << n_samples << ")";
}
}
return n_samples;
}
size_t FileSourceBase::source_item_size() const
{
// delegate the size of the source to the source() object, so sub-classes have less work to do
DLOG(INFO) << "source_item_size is " << source()->output_signature()->sizeof_stream_item(0);
return source()->output_signature()->sizeof_stream_item(0);
}
bool FileSourceBase::is_complex() const { return is_complex_; }
// Simple accessors
gnss_shared_ptr<gr::block> FileSourceBase::source() const { return file_source(); }
gnss_shared_ptr<gr::block> FileSourceBase::file_source() const { return file_source_; }
gnss_shared_ptr<gr::block> FileSourceBase::valve() const { return valve_; }
gnss_shared_ptr<gr::block> FileSourceBase::throttle() const { return throttle_; }
gnss_shared_ptr<gr::block> FileSourceBase::sink() const { return sink_; }
gr::blocks::file_source::sptr FileSourceBase::create_file_source()
{
auto item_tuple = itemTypeToSize();
item_size_ = std::get<0>(item_tuple);
is_complex_ = std::get<1>(item_tuple);
try
{
// TODO: why are we manually seeking, instead of passing the samples_to_skip to the file_source factory?
auto samples_to_skip = samplesToSkip();
file_source_ = gr::blocks::file_source::make(item_size(), filename().data(), repeat());
if (samples_to_skip > 0)
{
LOG(INFO) << "Skipping " << samples_to_skip << " samples of the input file";
if (not file_source_->seek(samples_to_skip, SEEK_SET))
{
LOG(ERROR) << "Error skipping bytes!";
}
}
}
catch (const std::exception& e)
{
std::cerr
<< "The receiver was configured to work with a file-based signal source\n"
<< "but the specified file is unreachable by GNSS-SDR.\n"
<< "[" << filename() << "]\n"
<< "\n"
<< "Please modify your configuration file\n"
<< "and point SignalSource.filename to a valid raw data file. Then:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
<< "Examples of configuration files available at:\n"
<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n"
<< std::endl;
LOG(ERROR) << "file_signal_source: Unable to open the samples file "
<< filename() << ", exiting the program.";
throw;
}
DLOG(INFO) << implementation() << "(" << file_source_->unique_id() << ")";
// enable subclass hooks
create_file_source_hook();
return file_source_;
}
gr::blocks::throttle::sptr FileSourceBase::create_throttle()
{
if (enable_throttle_control_)
{
// if we are throttling...
throttle_ = gr::blocks::throttle::make(source_item_size(), sampling_frequency());
DLOG(INFO) << "throttle(" << throttle_->unique_id() << ")";
// enable subclass hooks
create_throttle_hook();
}
return throttle_;
}
gnss_shared_ptr<gr::block> FileSourceBase::create_valve()
{
if (samples() > 0)
{
// if a number of samples is specified, honor it by creating a valve
// In practice, this is always true
valve_ = gnss_sdr_make_valve(source_item_size(), samples(), queue_);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
// enable subclass hooks
create_valve_hook();
}
return valve_;
}
gr::blocks::file_sink::sptr FileSourceBase::create_sink()
{
if (dump_)
{
sink_ = gr::blocks::file_sink::make(source_item_size(), dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
// enable subclass hooks
create_sink_hook();
}
return sink_;
}
// Subclass hooks to augment created objects, as required
void FileSourceBase::create_file_source_hook() {}
void FileSourceBase::create_throttle_hook() {}
void FileSourceBase::create_valve_hook() {}
void FileSourceBase::create_sink_hook() {}
// Subclass hooks for connection/disconnectino
void FileSourceBase::pre_connect_hook(gr::top_block_sptr top_block [[maybe_unused]]) {}
void FileSourceBase::post_connect_hook(gr::top_block_sptr top_block [[maybe_unused]]) {}
void FileSourceBase::pre_disconnect_hook(gr::top_block_sptr top_block [[maybe_unused]]) {}
void FileSourceBase::post_disconnect_hook(gr::top_block_sptr top_block [[maybe_unused]]) {}

186
src/algorithms/signal_source/adapters/file_source_base.h Normal file
View File

@ -0,0 +1,186 @@
/*!
* \file file_source_base.h
* \brief Header file of the base class to file-oriented signal_source GNSS blocks.
* \author Jim Melton, 2021. jim.melton(at)sncorp.com
*
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_FILE_SOURCE_BASE_H
#define GNSS_SDR_FILE_SOURCE_BASE_H
#include "concurrent_queue.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/throttle.h>
#include <pmt/pmt.h>
#include <tuple>
// for dump
#include <gnuradio/blocks/file_sink.h>
#include <cstddef>
#include <string>
class ConfigurationInterface;
//! \brief Base class to file-oriented SignalSourceBase GNSS blocks.
//!
//! This class supports the following properties:
//!
//! .filename - the path to the input file
//! - may be overridden by the -signal_source or -s command-line arguments
//!
//! .samples - number of samples to process (default 0)
//! - if not specified or 0, read the entire file; otherwise stop after that many samples
//!
//! .sampling_frequency - the frequency of the sampled data (samples/second)
//!
//! .item_type - data type of the samples (default "short")
//!
//! .header_size - the size of a prefixed header to skip in "samples" (default 0)
//!
//! .seconds_to_skip - number of seconds of lead-in data to skip over (default 0)
//!
//! .enable_throttle_control - whether to stop reading if the upstream buffer is full (default false)
//!
//! .repeat - whether to rewind and continue at end of file (default false)
//!
//! (probably abstracted to the base class)
//!
//! .dump - whether to archive input data
//!
//! .dump_filename - if dumping, path to file for output
class FileSourceBase : public SignalSourceBase
{
public:
// Virtual overrides
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
//! The file to read
std::string filename() const;
//! The item type
std::string item_type() const;
//! The configured size of each item
size_t item_size() override;
virtual size_t item_size() const; // what the interface **should** have declared
//! Whether to repeat reading after end-of-file
bool repeat() const;
//! The sampling frequency of the source file
int64_t sampling_frequency() const;
//! The number of samples in the file
uint64_t samples() const;
protected:
//! \brief Constructor
//!
//! Subclasses may want to assert default item types that are appropriate to the specific file
//! type supported. Rather than require the item type to be specified in the config file, allow
//! sub-classes to impose their will
FileSourceBase(ConfigurationInterface const* configuration, std::string const& role, std::string impl,
Concurrent_Queue<pmt::pmt_t>* queue,
std::string default_item_type = "short");
//! Perform post-construction initialization
void init();
//! Compute the item size, from the item_type(). Subclasses may constrain types that don't make
// sense. The return of this method is a tuple of item_size and is_complex
virtual std::tuple<size_t, bool> itemTypeToSize();
//! The number of (possibly unpacked) samples in a (raw) file sample (default=1)
virtual double packetsPerSample() const;
//! Compute the number of samples to skip
virtual size_t samplesToSkip() const;
//! Compute the number of samples in the file
size_t computeSamplesInFile() const;
//! Abstracted front-end source. Sub-classes may override if they create specialized chains to
//! decode source files into a usable format
virtual gnss_shared_ptr<gr::block> source() const;
//! For complex source chains, the size of the file item may not be the same as the size of the
// "source" (decoded) item. This method allows subclasses to handle these differences
virtual size_t source_item_size() const;
bool is_complex() const;
// Generic access to created objects
gnss_shared_ptr<gr::block> file_source() const;
gnss_shared_ptr<gr::block> valve() const;
gnss_shared_ptr<gr::block> throttle() const;
gnss_shared_ptr<gr::block> sink() const;
// The methods create the various blocks, if enabled, and return access to them. The created
// object is also held in this class
gr::blocks::file_source::sptr create_file_source();
gr::blocks::throttle::sptr create_throttle();
gnss_shared_ptr<gr::block> create_valve();
gr::blocks::file_sink::sptr create_sink();
// Subclass hooks to augment created objects, as required
virtual void create_file_source_hook();
virtual void create_throttle_hook();
virtual void create_valve_hook();
virtual void create_sink_hook();
// Subclass hooks for connection/disconnection
virtual void pre_connect_hook(gr::top_block_sptr top_block);
virtual void post_connect_hook(gr::top_block_sptr top_block);
virtual void pre_disconnect_hook(gr::top_block_sptr top_block);
virtual void post_disconnect_hook(gr::top_block_sptr top_block);
private:
std::string filename_;
gr::blocks::file_source::sptr file_source_;
std::string item_type_;
size_t item_size_;
bool is_complex_; // a misnomer; if I/Q are interleaved as integer values
size_t header_size_; // length (in samples) of the header (if any)
double seconds_to_skip_;
bool repeat_;
// The valve allows only the configured number of samples through, then it closes.
// The framework passes the queue as a naked pointer, rather than a shared pointer, so this
// class has two choices: construct the valve in the ctor, or hold onto the pointer, possibly
// beyond its lifetime. Fortunately, the queue is only used to create the valve, so the
// likelihood of holding a stale pointer is mitigated
uint64_t samples_;
int64_t sampling_frequency_; // why is this signed
gnss_shared_ptr<gr::block> valve_;
Concurrent_Queue<pmt::pmt_t>* queue_;
bool enable_throttle_control_;
gr::blocks::throttle::sptr throttle_;
bool dump_;
std::string dump_filename_;
gr::blocks::file_sink::sptr sink_;
};
#endif

6
src/algorithms/signal_source/adapters/flexiband_signal_source.cc
View File

@ -18,17 +18,21 @@
#include "flexiband_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <gnuradio/blocks/file_sink.h>
#include <teleorbit/frontend.h>
#include <utility>
using namespace std::string_literals;
FlexibandSignalSource::FlexibandSignalSource(const ConfigurationInterface* configuration,
const std::string& role,
unsigned int in_stream,
unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue __attribute__((unused))) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue __attribute__((unused)))
: SignalSourceBase(configuration, role, "Flexiband_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_item_type("byte");
item_type_ = configuration->property(role + ".item_type", default_item_type);

18
src/algorithms/signal_source/adapters/flexiband_signal_source.h
View File

@ -21,7 +21,7 @@
#define GNSS_SDR_FLEXIBAND_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/char_to_float.h>
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/float_to_complex.h>
@ -45,7 +45,7 @@ class ConfigurationInterface;
* \brief This class configures and reads samples from Teleorbit Flexiband front-end.
* This software requires a Flexiband GNU Radio driver installed (not included with GNSS-SDR).
*/
class FlexibandSignalSource : public GNSSBlockInterface
class FlexibandSignalSource : public SignalSourceBase
{
public:
FlexibandSignalSource(const ConfigurationInterface* configuration,
@ -54,19 +54,6 @@ public:
~FlexibandSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Flexiband_Signal_Source".
*/
inline std::string implementation() override
{
return "Flexiband_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -85,7 +72,6 @@ private:
std::vector<boost::shared_ptr<gr::block>> float_to_complex_;
std::vector<gr::blocks::null_sink::sptr> null_sinks_;
std::string role_;
std::string item_type_;
std::string firmware_filename_;
std::string signal_file;

5
src/algorithms/signal_source/adapters/fmcomms2_signal_source.cc
View File

@ -22,6 +22,7 @@
#include "ad9361_manager.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <algorithm> // for max
@ -29,10 +30,12 @@
#include <iostream>
#include <utility>
using namespace std::string_literals;
Fmcomms2SignalSource::Fmcomms2SignalSource(const ConfigurationInterface *configuration,
const std::string &role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t> *queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t> *queue)
: SignalSourceBase(configuration, role, "Fmcomms2_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_item_type("gr_complex");
const std::string default_dump_file("./data/signal_source.dat");

18
src/algorithms/signal_source/adapters/fmcomms2_signal_source.h
View File

@ -20,7 +20,7 @@
#ifndef GNSS_SDR_FMCOMMS2_SIGNAL_SOURCE_H
#define GNSS_SDR_FMCOMMS2_SIGNAL_SOURCE_H
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#if GRIIO_INCLUDE_HAS_GNURADIO
#include <gnuradio/iio/fmcomms2_source.h>
@ -41,7 +41,7 @@
class ConfigurationInterface;
class Fmcomms2SignalSource : public GNSSBlockInterface
class Fmcomms2SignalSource : public SignalSourceBase
{
public:
Fmcomms2SignalSource(const ConfigurationInterface* configuration,
@ -50,19 +50,6 @@ public:
~Fmcomms2SignalSource();
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Fmcomms2_Signal_Source"
*/
inline std::string implementation() override
{
return "Fmcomms2_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -78,7 +65,6 @@ private:
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr file_sink_;
std::string role_;
std::string item_type_;
std::string dump_filename_;

8
src/algorithms/signal_source/adapters/gen_signal_source.h
View File

@ -22,6 +22,7 @@
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_interface.h"
#include <pmt/pmt.h>
#include <memory>
#include <string>
@ -37,16 +38,13 @@
* \brief This class wraps blocks that generates synthesized GNSS signal and
* filters the signal.
*/
class GenSignalSource : public GNSSBlockInterface
class GenSignalSource : public SignalSourceInterface
{
public:
//! Constructor
GenSignalSource(std::shared_ptr<GNSSBlockInterface> signal_generator, std::shared_ptr<GNSSBlockInterface> filter,
std::string role, Concurrent_Queue<pmt::pmt_t> *queue);
//! Virtual destructor
virtual ~GenSignalSource() = default;
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
@ -56,6 +54,8 @@ public:
//! Returns "Signal Source"
inline std::string implementation() override { return "Signal Source"; }
inline size_t item_size() override { return 0; }
inline size_t getRfChannels() const final { return 0; }
inline std::shared_ptr<GNSSBlockInterface> signal_generator() const { return signal_generator_; }
private:

6
src/algorithms/signal_source/adapters/gn3s_signal_source.cc
View File

@ -16,16 +16,20 @@
#include "gn3s_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <gnuradio/blocks/file_sink.h>
#include <gn3s/gn3s_source_cc.h>
using namespace std::string_literals;
Gn3sSignalSource::Gn3sSignalSource(const ConfigurationInterface* configuration,
std::string role,
unsigned int in_stream,
unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Gn3s_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_item_type("short");
const std::string default_dump_file("./data/gn3s_source.dat");

20
src/algorithms/signal_source/adapters/gn3s_signal_source.h
View File

@ -19,7 +19,7 @@
#define GNSS_SDR_GN3S_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
@ -38,7 +38,7 @@ class ConfigurationInterface;
/*!
* \brief This class reads samples from a GN3S USB dongle, a RF front-end signal sampler
*/
class Gn3sSignalSource : public GNSSBlockInterface
class Gn3sSignalSource : public SignalSourceBase
{
public:
Gn3sSignalSource(const ConfigurationInterface* configuration,
@ -47,19 +47,6 @@ public:
~Gn3sSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Gn3s_Signal_Source".
*/
inline std::string implementation() override
{
return "Gn3s_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -73,11 +60,10 @@ public:
private:
gr::block_sptr gn3s_source_;
gr::blocks::file_sink::sptr file_sink_;
std::string role_;
std::string item_type_;
std::string dump_filename_;
size_t item_size_;
int64_t samples_;
[[maybe_unused]] int64_t samples_;
unsigned int in_stream_;
unsigned int out_stream_;
bool dump_;

7
src/algorithms/signal_source/adapters/labsat_signal_source.cc
View File

@ -16,14 +16,15 @@
#include "labsat_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include "labsat23_source.h"
#include <glog/logging.h>
#include <cstdint>
#include <utility>
using namespace std::string_literals;
LabsatSignalSource::LabsatSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_stream, unsigned int out_stream, Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
const std::string& role, unsigned int in_stream, unsigned int out_stream, Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Labsat_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_item_type("gr_complex");
const std::string default_dump_file("./labsat_output.dat");

17
src/algorithms/signal_source/adapters/labsat_signal_source.h
View File

@ -20,6 +20,7 @@
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
@ -38,7 +39,7 @@ class ConfigurationInterface;
/*!
* \brief This class reads samples stored by a LabSat 2 or LabSat 3 device
*/
class LabsatSignalSource : public GNSSBlockInterface
class LabsatSignalSource : public SignalSourceBase
{
public:
LabsatSignalSource(const ConfigurationInterface* configuration,
@ -47,19 +48,6 @@ public:
~LabsatSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Labsat_Signal_Source".
*/
inline std::string implementation() override
{
return "Labsat_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -75,7 +63,6 @@ private:
gr::blocks::file_sink::sptr file_sink_;
gr::blocks::throttle::sptr throttle_;
std::string role_;
std::string item_type_;
std::string filename_;
std::string dump_filename_;

18
src/algorithms/signal_source/adapters/multichannel_file_signal_source.cc
View File

@ -18,6 +18,7 @@
#include "multichannel_file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <exception>
@ -27,18 +28,21 @@
#include <utility>
using namespace std::string_literals;
MultichannelFileSignalSource::MultichannelFileSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_streams_(in_streams), out_streams_(out_streams)
Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Multichannel_File_Signal_Source"s), in_streams_(in_streams), out_streams_(out_streams)
{
const std::string default_filename("./example_capture.dat");
const std::string default_item_type("short");
const std::string default_dump_filename("./my_capture.dat");
const std::string default_filename("./example_capture.dat"s);
const std::string default_item_type("short"s);
const std::string default_dump_filename("./my_capture.dat"s);
const double default_seconds_to_skip = 0.0;
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
n_channels_ = configuration->property(role + ".total_channels", 1);
samples_ = configuration->property(role + ".samples"s, static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency"s, static_cast<int64_t>(0));
n_channels_ = configuration->property(role + ".total_channels"s, 1);
for (int32_t n = 0; n < n_channels_; n++)
{

17
src/algorithms/signal_source/adapters/multichannel_file_signal_source.h
View File

@ -23,6 +23,7 @@
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/throttle.h>
@ -45,7 +46,7 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from files at different frequency bands
* and adapts it to a SignalSourceInterface
*/
class MultichannelFileSignalSource : public GNSSBlockInterface
class MultichannelFileSignalSource : public SignalSourceBase
{
public:
MultichannelFileSignalSource(const ConfigurationInterface* configuration, const std::string& role,
@ -54,19 +55,6 @@ public:
~MultichannelFileSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Multichannel_File_Signal_Source".
*/
inline std::string implementation() override
{
return "Multichannel_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -109,7 +97,6 @@ private:
std::vector<gr::blocks::throttle::sptr> throttle_vec_;
std::vector<std::string> filename_vec_;
std::string item_type_;
std::string role_;
uint64_t samples_;
int64_t sampling_frequency_;
size_t item_size_;

275
src/algorithms/signal_source/adapters/nsr_file_signal_source.cc
View File

@ -10,286 +10,69 @@
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "nsr_file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_valve.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <exception>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <utility>
using namespace std::string_literals;
NsrFileSignalSource::NsrFileSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_streams_(in_streams), out_streams_(out_streams)
Concurrent_Queue<pmt::pmt_t>* queue)
: FileSourceBase(configuration, role, "Nsr_File_Signal_Source"s, queue, "byte"s)
{
const std::string default_filename("../data/my_capture.dat");
const std::string default_item_type("byte");
const std::string default_dump_filename("../data/my_capture_dump.dat");
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
filename_ = configuration->property(role + ".filename", default_filename);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename_ = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_ = FLAGS_s;
}
item_type_ = configuration->property(role + ".item_type", default_item_type);
repeat_ = configuration->property(role + ".repeat", false);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
if (item_type_ == "byte")
{
item_size_ = sizeof(char);
}
else
{
LOG(WARNING) << item_type_ << " unrecognized item type. Using byte.";
item_size_ = sizeof(char);
}
try
{
file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
unpack_byte_ = make_unpack_byte_2bit_samples();
}
catch (const std::exception& e)
{
std::cerr
<< "The receiver was configured to work with a file signal source\n"
<< "but the specified file is unreachable by GNSS-SDR.\n"
<< "Please modify your configuration file\n"
<< "and point SignalSource.filename to a valid raw data file. Then:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
<< "Examples of configuration files available at:\n"
<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n";
LOG(WARNING) << "file_signal_source: Unable to open the samples file "
<< filename_.c_str() << ", exiting the program.";
throw(e);
}
DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
if (samples_ == 0) // read all file
{
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding the last 2 milliseconds, and enable always the
* valve block
*/
std::ifstream file(filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
LOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size()));
}
else
{
std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename_ << ", which contains " << size << " [bytes]\n";
std::cout.precision(ss);
if (size > 0)
{
int sample_packet_factor = 4; // 1 byte -> 4 samples
samples_ = floor(static_cast<double>(size) / static_cast<double>(item_size())) * sample_packet_factor;
samples_ = samples_ - ceil(0.002 * static_cast<double>(sampling_frequency_)); // process all the samples available in the file excluding the last 2 ms
}
}
CHECK(samples_ > 0) << "File does not contain enough samples to process.";
const double signal_duration_s = static_cast<double>(samples_) * (1 / static_cast<double>(sampling_frequency_));
LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
valve_ = gnss_sdr_make_valve(sizeof(float), samples_, queue);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
if (dump_)
{
// sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
sink_ = gr::blocks::file_sink::make(sizeof(float), dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
}
if (enable_throttle_control_)
{
throttle_ = gr::blocks::throttle::make(sizeof(float), sampling_frequency_);
}
DLOG(INFO) << "File source filename " << filename_;
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
DLOG(INFO) << "Item type " << item_type_;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
DLOG(INFO) << "Dump " << dump_;
DLOG(INFO) << "Dump filename " << dump_filename_;
if (in_streams_ > 0)
if (in_streams > 0)
{
LOG(ERROR) << "A signal source does not have an input stream";
}
if (out_streams_ > 1)
if (out_streams > 1)
{
LOG(ERROR) << "This implementation only supports one output stream";
}
}
void NsrFileSignalSource::connect(gr::top_block_sptr top_block)
std::tuple<size_t, bool> NsrFileSignalSource::itemTypeToSize()
{
if (samples_ > 0)
auto is_complex = false;
auto item_size = size_t(sizeof(char)); // default
if (item_type() == "byte")
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
top_block->connect(throttle_, 0, valve_, 0);
DLOG(INFO) << "connected throttle to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
else
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, valve_, 0);
DLOG(INFO) << "connected file source to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
item_size = sizeof(char);
}
else
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
if (dump_)
{
top_block->connect(throttle_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
else
{
if (dump_)
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
LOG(WARNING) << item_type() << " unrecognized item type. Using byte.";
}
return std::make_tuple(item_size, is_complex);
}
// 1 byte -> 4 samples
double NsrFileSignalSource::packetsPerSample() const { return 4.0; }
gnss_shared_ptr<gr::block> NsrFileSignalSource::source() const { return unpack_byte_; }
void NsrFileSignalSource::disconnect(gr::top_block_sptr top_block)
void NsrFileSignalSource::create_file_source_hook()
{
if (samples_ > 0)
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->connect(unpack_byte_, 0, throttle_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to throttle_";
top_block->disconnect(throttle_, 0, valve_, 0);
DLOG(INFO) << "disconnected throttle to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
else
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->disconnect(unpack_byte_, 0, valve_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
}
else
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->disconnect(unpack_byte_, 0, throttle_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to throttle";
if (dump_)
{
top_block->disconnect(unpack_byte_, 0, sink_, 0);
DLOG(INFO) << "disconnected funpack_byte_ to sink";
}
}
else
{
if (dump_)
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->disconnect(unpack_byte_, 0, sink_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to sink";
}
}
}
unpack_byte_ = make_unpack_byte_2bit_samples();
DLOG(INFO) << "unpack_byte_2bit_samples(" << unpack_byte_->unique_id() << ")";
}
gr::basic_block_sptr NsrFileSignalSource::get_left_block()
void NsrFileSignalSource::pre_connect_hook(gr::top_block_sptr top_block)
{
LOG(WARNING) << "Left block of a signal source should not be retrieved";
// return gr_block_sptr();
return gr::blocks::file_source::sptr();
top_block->connect(file_source(), 0, unpack_byte_, 0);
DLOG(INFO) << "connected file_source to unpacker";
}
gr::basic_block_sptr NsrFileSignalSource::get_right_block()
void NsrFileSignalSource::pre_disconnect_hook(gr::top_block_sptr top_block)
{
if (samples_ > 0)
{
return valve_;
}
if (enable_throttle_control_ == true)
{
return throttle_;
}
return unpack_byte_;
top_block->disconnect(file_source(), 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file_source from unpacker";
}

83
src/algorithms/signal_source/adapters/nsr_file_signal_source.h
View File

@ -12,7 +12,7 @@
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
@ -21,15 +21,8 @@
#ifndef GNSS_SDR_NSR_FILE_SIGNAL_SOURCE_H
#define GNSS_SDR_NSR_FILE_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "file_source_base.h"
#include "unpack_byte_2bit_samples.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
#include <string>
/** \addtogroup Signal_Source
* \{ */
@ -42,7 +35,7 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from a file
* and adapts it to a SignalSourceInterface
*/
class NsrFileSignalSource : public GNSSBlockInterface
class NsrFileSignalSource : public FileSourceBase
{
public:
NsrFileSignalSource(const ConfigurationInterface* configuration, const std::string& role,
@ -50,73 +43,17 @@ public:
Concurrent_Queue<pmt::pmt_t>* queue);
~NsrFileSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Nsr_File_Signal_Source".
*/
inline std::string implementation() override
{
return "Nsr_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
inline std::string filename() const
{
return filename_;
}
inline std::string item_type() const
{
return item_type_;
}
inline bool repeat() const
{
return repeat_;
}
inline int64_t sampling_frequency() const
{
return sampling_frequency_;
}
inline uint64_t samples() const
{
return samples_;
}
protected:
std::tuple<size_t, bool> itemTypeToSize() override;
double packetsPerSample() const override;
gnss_shared_ptr<gr::block> source() const override;
void create_file_source_hook() override;
void pre_connect_hook(gr::top_block_sptr top_block) override;
void pre_disconnect_hook(gr::top_block_sptr top_block) override;
private:
gr::blocks::file_source::sptr file_source_;
unpack_byte_2bit_samples_sptr unpack_byte_;
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr sink_;
gr::blocks::throttle::sptr throttle_;
uint64_t samples_;
int64_t sampling_frequency_;
size_t item_size_;
std::string filename_;
std::string item_type_;
std::string dump_filename_;
std::string role_;
uint32_t in_streams_;
uint32_t out_streams_;
bool repeat_;
bool dump_;
// Throttle control
bool enable_throttle_control_;
};

7
src/algorithms/signal_source/adapters/osmosdr_signal_source.cc
View File

@ -18,6 +18,7 @@
#include "osmosdr_signal_source.h"
#include "GPS_L1_CA.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <gnuradio/blocks/file_sink.h>
@ -25,9 +26,13 @@
#include <utility>
using namespace std::string_literals;
OsmosdrSignalSource::OsmosdrSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Osmosdr_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
// DUMP PARAMETERS
const std::string empty;

18
src/algorithms/signal_source/adapters/osmosdr_signal_source.h
View File

@ -20,7 +20,7 @@
#define GNSS_SDR_OSMOSDR_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <pmt/pmt.h>
#include <cstdint>
@ -42,7 +42,7 @@ class ConfigurationInterface;
* HackRF or Realtek's RTL2832U-based USB dongle DVB-T receivers
* (see https://osmocom.org/projects/rtl-sdr/wiki)
*/
class OsmosdrSignalSource : public GNSSBlockInterface
class OsmosdrSignalSource : public SignalSourceBase
{
public:
OsmosdrSignalSource(const ConfigurationInterface* configuration,
@ -51,19 +51,6 @@ public:
~OsmosdrSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Osmosdr_Signal_Source"
*/
inline std::string implementation() override
{
return "Osmosdr_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -81,7 +68,6 @@ private:
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr file_sink_;
std::string role_;
std::string item_type_;
std::string dump_filename_;
std::string osmosdr_args_;

7
src/algorithms/signal_source/adapters/plutosdr_signal_source.cc
View File

@ -18,15 +18,20 @@
#include "plutosdr_signal_source.h"
#include "GPS_L1_CA.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <iostream>
#include <utility>
using namespace std::string_literals;
PlutosdrSignalSource::PlutosdrSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Plutosdr_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_item_type("gr_complex");
const std::string default_dump_file("./data/signal_source.dat");

17
src/algorithms/signal_source/adapters/plutosdr_signal_source.h
View File

@ -19,7 +19,7 @@
#ifndef GNSS_SDR_PLUTOSDR_SIGNAL_SOURCE_H
#define GNSS_SDR_PLUTOSDR_SIGNAL_SOURCE_H
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#if GRIIO_INCLUDE_HAS_GNURADIO
#include <gnuradio/iio/pluto_source.h>
@ -42,7 +42,7 @@ class ConfigurationInterface;
/*!
*/
class PlutosdrSignalSource : public GNSSBlockInterface
class PlutosdrSignalSource : public SignalSourceBase
{
public:
PlutosdrSignalSource(const ConfigurationInterface* configuration,
@ -51,18 +51,6 @@ public:
~PlutosdrSignalSource() = default;
std::string role() override
{
return role_;
}
/*!
* \brief Returns "Plutosdr_Signal_Source"
*/
std::string implementation() override
{
return "Plutosdr_Signal_Source";
}
size_t item_size() override
{
return item_size_;
@ -79,7 +67,6 @@ private:
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr file_sink_;
std::string role_;
std::string dump_filename_;
// Front-end settings

6
src/algorithms/signal_source/adapters/raw_array_signal_source.cc
View File

@ -17,14 +17,18 @@
#include "raw_array_signal_source.h"
#include "concurrent_queue.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <gnuradio/blocks/file_sink.h>
#include <pmt/pmt.h>
#include <dbfcttc/raw_array.h>
using namespace std::string_literals;
RawArraySignalSource::RawArraySignalSource(const ConfigurationInterface* configuration,
std::string role, unsigned int in_stream, unsigned int out_stream, Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
std::string role, unsigned int in_stream, unsigned int out_stream, Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Raw_Array_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
const std::string default_item_type("gr_complex");
const std::string default_dump_file("./data/raw_array_source.dat");

20
src/algorithms/signal_source/adapters/raw_array_signal_source.h
View File

@ -19,7 +19,7 @@
#define GNSS_SDR_RAW_ARRAY_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
@ -39,7 +39,7 @@ class ConfigurationInterface;
/*!
* \brief This class reads samples from a GN3S USB dongle, a RF front-end signal sampler
*/
class RawArraySignalSource : public GNSSBlockInterface
class RawArraySignalSource : public SignalSourceBase
{
public:
RawArraySignalSource(const ConfigurationInterface* configuration,
@ -48,19 +48,6 @@ public:
~RawArraySignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "RawArraySignalSource".
*/
inline std::string implementation() override
{
return "Raw_Array_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -74,12 +61,11 @@ public:
private:
gr::block_sptr raw_array_source_;
gr::blocks::file_sink::sptr file_sink_;
std::string role_;
std::string item_type_;
std::string dump_filename_;
std::string eth_device_;
size_t item_size_;
int64_t samples_;
[[maybe_unused]] int64_t samples_;
unsigned int in_stream_;
unsigned int out_stream_;
bool dump_;

7
src/algorithms/signal_source/adapters/rtl_tcp_signal_source.cc
View File

@ -19,20 +19,21 @@
#include "rtl_tcp_signal_source.h"
#include "GPS_L1_CA.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <cstdint>
#include <iostream>
#include <utility>
using namespace std::string_literals;
RtlTcpSignalSource::RtlTcpSignalSource(const ConfigurationInterface* configuration,
const std::string& role,
unsigned int in_stream,
unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role),
in_stream_(in_stream),
out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "RtlTcp_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
// DUMP PARAMETERS
const std::string default_dump_file("./data/signal_source.dat");

18
src/algorithms/signal_source/adapters/rtl_tcp_signal_source.h
View File

@ -19,8 +19,8 @@
#define GNSS_SDR_RTL_TCP_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "rtl_tcp_signal_source_c.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/deinterleave.h>
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/float_to_complex.h>
@ -42,7 +42,7 @@ class ConfigurationInterface;
* I/Q samples over TCP.
* (see https://osmocom.org/projects/rtl-sdr/wiki)
*/
class RtlTcpSignalSource : public GNSSBlockInterface
class RtlTcpSignalSource : public SignalSourceBase
{
public:
RtlTcpSignalSource(const ConfigurationInterface* configuration,
@ -53,19 +53,6 @@ public:
~RtlTcpSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "RtlTcp_Signal_Source"
*/
inline std::string implementation() override
{
return "RtlTcp_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -84,7 +71,6 @@ private:
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr file_sink_;
std::string role_;
std::string item_type_;
std::string dump_filename_;

46
src/algorithms/signal_source/adapters/signal_source_base.cc Normal file
View File

@ -0,0 +1,46 @@
/*!
* \file signal_source_base.cc
* \brief Base class for signal sources
* \author Jim Melton, 2020. jim.melton(at)sncorp.com
*
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "signal_source_base.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include <utility> // move
using namespace std::string_literals;
std::string SignalSourceBase::role()
{
return role_;
}
std::string SignalSourceBase::implementation()
{
return implementation_;
}
size_t SignalSourceBase::getRfChannels() const
{
return rfChannels_;
}
SignalSourceBase::SignalSourceBase(ConfigurationInterface const* configuration, std::string role, std::string impl)
: role_(std::move(role)), implementation_(std::move(impl))
{
// because clang-tidy insists on using std::move for the string arguments, and to avoid
// depending on the order of initialization, assign rfChannels_ in the body
rfChannels_ = configuration->property(role_ + ".RF_channels"s, uint64_t(1U));
}

47
src/algorithms/signal_source/adapters/signal_source_base.h Normal file
View File

@ -0,0 +1,47 @@
/*!
* \file signal_source_base.h
* \brief Header file of the base class to signal_source GNSS blocks.
* \author Jim Melton, 2020. jim.melton(at)sncorp.com
*
*
* -----------------------------------------------------------------------------
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_SIGNAL_SOURCE_BASE_H
#define GNSS_SDR_SIGNAL_SOURCE_BASE_H
#include "signal_source_interface.h"
#include <cstddef>
#include <string>
class ConfigurationInterface;
class SignalSourceBase : public SignalSourceInterface
{
public:
std::string role() final;
std::string implementation() final;
size_t getRfChannels() const override;
protected:
//! Constructor
SignalSourceBase(ConfigurationInterface const* configuration, std::string role, std::string impl);
private:
std::string const role_;
std::string const implementation_;
size_t rfChannels_;
};
#endif

280
src/algorithms/signal_source/adapters/spir_file_signal_source.cc
View File

@ -6,290 +6,74 @@
*
* -----------------------------------------------------------------------------
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is not part of GNSS-SDR.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "spir_file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_valve.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <exception>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <utility>
using namespace std::string_literals;
SpirFileSignalSource::SpirFileSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_streams_(in_streams), out_streams_(out_streams)
Concurrent_Queue<pmt::pmt_t>* queue)
: FileSourceBase(configuration, role, "Spir_File_Signal_Source"s, queue, "int"s)
{
const std::string default_filename("../data/my_capture.dat");
const std::string default_item_type("int");
const std::string default_dump_filename("../data/my_capture_dump.dat");
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
filename_ = configuration->property(role + ".filename", default_filename);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename_ = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_ = FLAGS_s;
}
item_type_ = configuration->property(role + ".item_type", default_item_type);
repeat_ = configuration->property(role + ".repeat", false);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
if (item_type_ == "int")
{
item_size_ = sizeof(int);
}
else
{
LOG(WARNING) << item_type_ << " unrecognized item type. Using int.";
item_size_ = sizeof(int);
}
try
{
file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
unpack_intspir_ = make_unpack_intspir_1bit_samples();
}
catch (const std::exception& e)
{
std::cerr
<< "The receiver was configured to work with a file signal source\n"
<< "but the specified file is unreachable by GNSS-SDR.\n"
<< "Please modify your configuration file\n"
<< "and point SignalSource.filename to a valid raw data file. Then:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
<< "Examples of configuration files available at:\n"
<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n";
LOG(WARNING) << "file_signal_source: Unable to open the samples file "
<< filename_.c_str() << ", exiting the program.";
throw(e);
}
DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
if (samples_ == 0) // read all file
{
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding the last 100 milliseconds, and enable always the
* valve block
*/
std::ifstream file(filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
LOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size()));
}
else
{
std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename_ << ", which contains " << size << " [bytes]\n";
std::cout.precision(ss);
if (size > 0)
{
int sample_packet_factor = 1; // 1 int -> 1 complex sample (I&Q from 1 channel)
samples_ = floor(static_cast<double>(size) / static_cast<double>(item_size())) * sample_packet_factor;
samples_ = samples_ - ceil(0.002 * static_cast<double>(sampling_frequency_)); // process all the samples available in the file excluding the last 2 ms
}
}
CHECK(samples_ > 0) << "File does not contain enough samples to process.";
double signal_duration_s = static_cast<double>(samples_) * (1 / static_cast<double>(sampling_frequency_));
LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
valve_ = gnss_sdr_make_valve(sizeof(float), samples_, queue);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
if (dump_)
{
// sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
sink_ = gr::blocks::file_sink::make(sizeof(float), dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
}
if (enable_throttle_control_)
{
throttle_ = gr::blocks::throttle::make(sizeof(float), sampling_frequency_);
}
DLOG(INFO) << "File source filename " << filename_;
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
DLOG(INFO) << "Item type " << item_type_;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
DLOG(INFO) << "Dump " << dump_;
DLOG(INFO) << "Dump filename " << dump_filename_;
if (in_streams_ > 0)
if (in_streams > 0)
{
LOG(ERROR) << "A signal source does not have an input stream";
}
if (out_streams_ > 1)
if (out_streams > 1)
{
LOG(ERROR) << "This implementation only supports one output stream";
}
}
void SpirFileSignalSource::connect(gr::top_block_sptr top_block)
std::tuple<size_t, bool> SpirFileSignalSource::itemTypeToSize()
{
if (samples_ > 0)
auto is_complex = false;
auto item_size = size_t(0);
if (item_type() == "int")
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, unpack_intspir_, 0);
top_block->connect(unpack_intspir_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
top_block->connect(throttle_, 0, valve_, 0);
DLOG(INFO) << "connected throttle to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
else
{
top_block->connect(file_source_, 0, unpack_intspir_, 0);
top_block->connect(unpack_intspir_, 0, valve_, 0);
DLOG(INFO) << "connected file source to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
item_size = sizeof(int);
}
else
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, unpack_intspir_, 0);
top_block->connect(unpack_intspir_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
if (dump_)
{
top_block->connect(throttle_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
else
{
if (dump_)
{
top_block->connect(file_source_, 0, unpack_intspir_, 0);
top_block->connect(unpack_intspir_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
LOG(WARNING) << item_type() << " unsupported item type. Using int.";
item_size = sizeof(int);
}
return std::make_tuple(item_size, is_complex);
}
// This class feeds the file data through a decoder to produce samples; for all intents this is the "source"
gnss_shared_ptr<gr::block> SpirFileSignalSource::source() const { return unpack_intspir_; }
void SpirFileSignalSource::disconnect(gr::top_block_sptr top_block)
void SpirFileSignalSource::create_file_source_hook()
{
if (samples_ > 0)
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, unpack_intspir_, 0);
DLOG(INFO) << "disconnected file source to unpack_intspir_";
top_block->connect(unpack_intspir_, 0, throttle_, 0);
DLOG(INFO) << "disconnected unpack_intspir_ to throttle_";
top_block->disconnect(throttle_, 0, valve_, 0);
DLOG(INFO) << "disconnected throttle to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
else
{
top_block->disconnect(file_source_, 0, unpack_intspir_, 0);
DLOG(INFO) << "disconnected file source to unpack_intspir_";
top_block->disconnect(unpack_intspir_, 0, valve_, 0);
DLOG(INFO) << "disconnected unpack_intspir_ to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
}
else
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, unpack_intspir_, 0);
DLOG(INFO) << "disconnected file source to unpack_intspir_";
top_block->disconnect(unpack_intspir_, 0, throttle_, 0);
DLOG(INFO) << "disconnected unpack_intspir_ to throttle";
if (dump_)
{
top_block->disconnect(unpack_intspir_, 0, sink_, 0);
DLOG(INFO) << "disconnected funpack_intspir_ to sink";
}
}
else
{
if (dump_)
{
top_block->disconnect(file_source_, 0, unpack_intspir_, 0);
DLOG(INFO) << "disconnected file source to unpack_intspir_";
top_block->disconnect(unpack_intspir_, 0, sink_, 0);
DLOG(INFO) << "disconnected unpack_intspir_ to sink";
}
}
}
// connect the file to the decoder
unpack_intspir_ = make_unpack_intspir_1bit_samples();
DLOG(INFO) << "unpack_intspir_1bit_samples(" << unpack_intspir_->unique_id() << ")";
}
gr::basic_block_sptr SpirFileSignalSource::get_left_block()
void SpirFileSignalSource::pre_connect_hook(gr::top_block_sptr top_block)
{
LOG(WARNING) << "Left block of a signal source should not be retrieved";
// return gr_block_sptr();
return gr::blocks::file_source::sptr();
top_block->connect(file_source(), 0, unpack_intspir_, 0);
DLOG(INFO) << "connected file_source to unpacker";
}
gr::basic_block_sptr SpirFileSignalSource::get_right_block()
void SpirFileSignalSource::post_disconnect_hook(gr::top_block_sptr top_block)
{
if (samples_ > 0)
{
return valve_;
}
if (enable_throttle_control_ == true)
{
return throttle_;
}
return unpack_intspir_;
top_block->disconnect(file_source(), 0, unpack_intspir_, 0);
DLOG(INFO) << "disconnected file_source from unpacker";
}

94
src/algorithms/signal_source/adapters/spir_file_signal_source.h
View File

@ -6,13 +6,10 @@
*
* -----------------------------------------------------------------------------
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is not part of GNSS-SDR.
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
@ -21,16 +18,8 @@
#ifndef GNSS_SDR_SPIR_FILE_SIGNAL_SOURCE_H
#define GNSS_SDR_SPIR_FILE_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "file_source_base.h"
#include "unpack_intspir_1bit_samples.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
#include <cstdint>
#include <string>
/** \addtogroup Signal_Source
@ -45,7 +34,7 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from a file
* and adapts it to a SignalSourceInterface
*/
class SpirFileSignalSource : public GNSSBlockInterface
class SpirFileSignalSource : public FileSourceBase
{
public:
SpirFileSignalSource(const ConfigurationInterface* configuration, const std::string& role,
@ -54,77 +43,16 @@ public:
~SpirFileSignalSource() = default;
inline std::string role() override
{
return role_;
}
protected:
std::tuple<size_t, bool> itemTypeToSize() override;
gnss_shared_ptr<gr::block> source() const override;
void create_file_source_hook() override;
void pre_connect_hook(gr::top_block_sptr top_block) override;
void post_disconnect_hook(gr::top_block_sptr top_block) override;
/*!
* \brief Returns "Spir_File_Signal_Source".
*/
inline std::string implementation() override
{
return "Spir_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
inline std::string filename() const
{
return filename_;
}
inline std::string item_type() const
{
return item_type_;
}
inline bool repeat() const
{
return repeat_;
}
inline int64_t sampling_frequency() const
{
return sampling_frequency_;
}
inline uint64_t samples() const
{
return samples_;
}
private:
gr::blocks::file_source::sptr file_source_;
unpack_intspir_1bit_samples_sptr unpack_intspir_;
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr sink_;
gr::blocks::throttle::sptr throttle_;
std::string filename_;
std::string item_type_;
std::string dump_filename_;
std::string role_;
uint64_t samples_;
int64_t sampling_frequency_;
size_t item_size_;
unsigned int in_streams_;
unsigned int out_streams_;
bool repeat_;
bool dump_;
// Throttle control
bool enable_throttle_control_;
};

5
src/algorithms/signal_source/adapters/spir_gss6450_file_signal_source.cc
View File

@ -18,6 +18,7 @@
#include "spir_gss6450_file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <exception>
#include <fstream>
@ -25,9 +26,11 @@
#include <iostream>
#include <utility>
using namespace std::string_literals;
SpirGSS6450FileSignalSource::SpirGSS6450FileSignalSource(const ConfigurationInterface* configuration,
const std::string& role, uint32_t in_streams, uint32_t out_streams, Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_streams_(in_streams), out_streams_(out_streams)
const std::string& role, uint32_t in_streams, uint32_t out_streams, Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "Spir_GSS6450_File_Signal_Source"s), in_streams_(in_streams), out_streams_(out_streams)
{
const std::string default_filename("../data/my_capture.dat");
const std::string default_dump_filename("../data/my_capture_dump.dat");

16
src/algorithms/signal_source/adapters/spir_gss6450_file_signal_source.h
View File

@ -22,8 +22,8 @@
#define GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "gnss_sdr_valve.h"
#include "signal_source_base.h"
#include "unpack_spir_gss6450_samples.h"
#include <gnuradio/blocks/deinterleave.h>
#include <gnuradio/blocks/endian_swap.h>
@ -50,23 +50,12 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from a file
* and adapts it to a SignalSourceInterface
*/
class SpirGSS6450FileSignalSource : public GNSSBlockInterface
class SpirGSS6450FileSignalSource : public SignalSourceBase
{
public:
SpirGSS6450FileSignalSource(const ConfigurationInterface* configuration, const std::string& role,
uint32_t in_streams, uint32_t out_streams, Concurrent_Queue<pmt::pmt_t>* queue);
~SpirGSS6450FileSignalSource() = default;
inline std::string role() override
{
return role_;
}
inline std::string implementation() override
{
return "Spir_GSS6450_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -114,7 +103,6 @@ private:
std::vector<gr::blocks::throttle::sptr> throttle_vec_;
std::string filename_;
std::string dump_filename_;
std::string role_;
std::string item_type_;
uint64_t samples_;
int64_t sampling_frequency_;

289
src/algorithms/signal_source/adapters/two_bit_cpx_file_signal_source.cc
View File

@ -9,296 +9,77 @@
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#include "two_bit_cpx_file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_valve.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <exception>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <utility>
using namespace std::string_literals;
TwoBitCpxFileSignalSource::TwoBitCpxFileSignalSource(
const ConfigurationInterface* configuration,
const std::string& role,
unsigned int in_streams,
unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role),
in_streams_(in_streams),
out_streams_(out_streams)
unsigned int in_streams, unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue)
: FileSourceBase(configuration, role, "Two_Bit_Cpx_File_Signal_Source"s, queue, "byte"s)
{
const std::string default_filename("../data/my_capture.dat");
const std::string default_item_type("byte");
const std::string default_dump_filename("../data/my_capture_dump.dat");
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
filename_ = configuration->property(role + ".filename", default_filename);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename_ = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_ = FLAGS_s;
}
item_type_ = configuration->property(role + ".item_type", default_item_type);
repeat_ = configuration->property(role + ".repeat", false);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
if (item_type_ == "byte")
{
item_size_ = sizeof(char);
}
else
{
LOG(WARNING) << item_type_ << " unrecognized item type. Using byte.";
item_size_ = sizeof(char);
}
try
{
file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
unpack_byte_ = make_unpack_byte_2bit_cpx_samples();
inter_shorts_to_cpx_ = gr::blocks::interleaved_short_to_complex::make(false, true); // I/Q swap enabled
}
catch (const std::exception& e)
{
std::cerr
<< "The receiver was configured to work with a file signal source\n"
<< "but the specified file is unreachable by GNSS-SDR.\n"
<< "Please modify your configuration file\n"
<< "and point SignalSource.filename to a valid raw data file. Then:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
<< "Examples of configuration files available at:\n"
<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n";
LOG(WARNING) << "file_signal_source: Unable to open the samples file "
<< filename_.c_str() << ", exiting the program.";
throw(e);
}
DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
if (samples_ == 0) // read all file
{
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding the last 2 milliseconds, and enable always the
* valve block
*/
std::ifstream file(filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
LOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size()));
}
else
{
std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename_ << ", which contains " << size << " [bytes]\n";
std::cout.precision(ss);
if (size > 0)
{
int sample_packet_factor = 2; // 1 byte -> 2 samples
samples_ = floor(static_cast<double>(size) / static_cast<double>(item_size())) * sample_packet_factor;
samples_ = samples_ - ceil(0.002 * static_cast<double>(sampling_frequency_)); // process all the samples available in the file excluding the last 2 ms
}
}
CHECK(samples_ > 0) << "File does not contain enough samples to process.";
const double signal_duration_s = static_cast<double>(samples_) * (1 / static_cast<double>(sampling_frequency_));
LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
valve_ = gnss_sdr_make_valve(sizeof(gr_complex), samples_, queue);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
if (dump_)
{
// sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
sink_ = gr::blocks::file_sink::make(sizeof(gr_complex), dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
}
if (enable_throttle_control_)
{
throttle_ = gr::blocks::throttle::make(sizeof(gr_complex), sampling_frequency_);
}
DLOG(INFO) << "File source filename " << filename_;
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
DLOG(INFO) << "Item type " << item_type_;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
DLOG(INFO) << "Dump " << dump_;
DLOG(INFO) << "Dump filename " << dump_filename_;
if (in_streams_ > 0)
if (in_streams > 0)
{
LOG(ERROR) << "A signal source does not have an input stream";
}
if (out_streams_ > 1)
if (out_streams > 1)
{
LOG(ERROR) << "This implementation only supports one output stream";
}
}
void TwoBitCpxFileSignalSource::connect(gr::top_block_sptr top_block)
std::tuple<size_t, bool> TwoBitCpxFileSignalSource::itemTypeToSize()
{
if (samples_ > 0)
auto is_complex = false;
auto item_size = size_t(sizeof(char)); // default
if (item_type() == "byte")
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
top_block->connect(inter_shorts_to_cpx_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
top_block->connect(throttle_, 0, valve_, 0);
DLOG(INFO) << "connected throttle to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
else
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
top_block->connect(inter_shorts_to_cpx_, 0, valve_, 0);
DLOG(INFO) << "connected file source to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
item_size = sizeof(char);
}
else
{
if (enable_throttle_control_ == true)
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
top_block->connect(inter_shorts_to_cpx_, 0, throttle_, 0);
DLOG(INFO) << "connected file source to throttle";
if (dump_)
{
top_block->connect(throttle_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
else
{
if (dump_)
{
top_block->connect(file_source_, 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
top_block->connect(inter_shorts_to_cpx_, 0, sink_, 0);
DLOG(INFO) << "connected file source to sink";
}
}
LOG(WARNING) << item_type() << " unrecognized item type. Using byte.";
}
return std::make_tuple(item_size, is_complex);
}
// 1 byte -> 2 samples
double TwoBitCpxFileSignalSource::packetsPerSample() const { return 2.0; }
gnss_shared_ptr<gr::block> TwoBitCpxFileSignalSource::source() const { return inter_shorts_to_cpx_; }
void TwoBitCpxFileSignalSource::disconnect(gr::top_block_sptr top_block)
void TwoBitCpxFileSignalSource::create_file_source_hook()
{
if (samples_ > 0)
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->connect(unpack_byte_, 0, throttle_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to throttle_";
top_block->disconnect(throttle_, 0, valve_, 0);
DLOG(INFO) << "disconnected throttle to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
else
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->disconnect(unpack_byte_, 0, valve_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
}
else
{
if (enable_throttle_control_ == true)
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->disconnect(unpack_byte_, 0, throttle_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to throttle";
if (dump_)
{
top_block->disconnect(unpack_byte_, 0, sink_, 0);
DLOG(INFO) << "disconnected funpack_byte_ to sink";
}
}
else
{
if (dump_)
{
top_block->disconnect(file_source_, 0, unpack_byte_, 0);
DLOG(INFO) << "disconnected file source to unpack_byte_";
top_block->disconnect(unpack_byte_, 0, sink_, 0);
DLOG(INFO) << "disconnected unpack_byte_ to sink";
}
}
}
unpack_byte_ = make_unpack_byte_2bit_cpx_samples();
DLOG(INFO) << "unpack_byte_2bit_cpx_samples(" << unpack_byte_->unique_id() << ")";
inter_shorts_to_cpx_ = gr::blocks::interleaved_short_to_complex::make(false, true); // I/Q swap enabled
DLOG(INFO) << "interleaved_short_to_complex(" << inter_shorts_to_cpx_->unique_id() << ")";
}
gr::basic_block_sptr TwoBitCpxFileSignalSource::get_left_block()
void TwoBitCpxFileSignalSource::pre_connect_hook(gr::top_block_sptr top_block)
{
LOG(WARNING) << "Left block of a signal source should not be retrieved";
// return gr_block_sptr();
return gr::blocks::file_source::sptr();
top_block->connect(file_source(), 0, unpack_byte_, 0);
top_block->connect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
DLOG(INFO) << "connected file_source to unpacker";
}
gr::basic_block_sptr TwoBitCpxFileSignalSource::get_right_block()
void TwoBitCpxFileSignalSource::pre_disconnect_hook(gr::top_block_sptr top_block)
{
if (samples_ > 0)
{
return valve_;
}
if (enable_throttle_control_ == true)
{
return throttle_;
}
return unpack_byte_;
top_block->disconnect(file_source(), 0, unpack_byte_, 0);
top_block->disconnect(unpack_byte_, 0, inter_shorts_to_cpx_, 0);
DLOG(INFO) << "disconnected file_source from unpacker";
}

86
src/algorithms/signal_source/adapters/two_bit_cpx_file_signal_source.h
View File

@ -11,7 +11,7 @@
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
@ -20,17 +20,9 @@
#ifndef GNSS_SDR_TWO_BIT_CPX_FILE_SIGNAL_SOURCE_H
#define GNSS_SDR_TWO_BIT_CPX_FILE_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "file_source_base.h"
#include "unpack_byte_2bit_cpx_samples.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/interleaved_short_to_complex.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
#include <cstdint>
#include <string>
/** \addtogroup Signal_Source
* \{ */
@ -44,7 +36,7 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from a file
* and adapts it to a SignalSourceInterface
*/
class TwoBitCpxFileSignalSource : public GNSSBlockInterface
class TwoBitCpxFileSignalSource : public FileSourceBase
{
public:
TwoBitCpxFileSignalSource(const ConfigurationInterface* configuration,
@ -54,74 +46,18 @@ public:
Concurrent_Queue<pmt::pmt_t>* queue);
~TwoBitCpxFileSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Two_Bit_Cpx_File_Signal_Source".
*/
inline std::string implementation() override
{
return "Two_Bit_Cpx_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
inline std::string filename() const
{
return filename_;
}
inline std::string item_type() const
{
return item_type_;
}
inline bool repeat() const
{
return repeat_;
}
inline int64_t sampling_frequency() const
{
return sampling_frequency_;
}
inline uint64_t samples() const
{
return samples_;
}
protected:
std::tuple<size_t, bool> itemTypeToSize() override;
double packetsPerSample() const override;
gnss_shared_ptr<gr::block> source() const override;
void create_file_source_hook() override;
void pre_connect_hook(gr::top_block_sptr top_block) override;
void pre_disconnect_hook(gr::top_block_sptr top_block) override;
private:
gr::blocks::file_source::sptr file_source_;
gr::blocks::interleaved_short_to_complex::sptr inter_shorts_to_cpx_;
unpack_byte_2bit_cpx_samples_sptr unpack_byte_;
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr sink_;
gr::blocks::throttle::sptr throttle_;
std::string filename_;
std::string item_type_;
std::string dump_filename_;
std::string role_;
size_t item_size_;
uint64_t samples_;
int64_t sampling_frequency_;
unsigned int in_streams_;
unsigned int out_streams_;
bool repeat_;
bool dump_;
// Throttle control
bool enable_throttle_control_;
gr::blocks::interleaved_short_to_complex::sptr inter_shorts_to_cpx_;
};

349
src/algorithms/signal_source/adapters/two_bit_packed_file_signal_source.cc
View File

@ -10,7 +10,7 @@
* GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
* This file is part of GNSS-SDR.
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
* Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
@ -18,291 +18,122 @@
#include "two_bit_packed_file_signal_source.h"
#include "configuration_interface.h"
#include "gnss_sdr_flags.h"
#include "gnss_sdr_valve.h"
#include "gnss_sdr_string_literals.h"
#include <glog/logging.h>
#include <gnuradio/blocks/char_to_float.h>
#include <exception>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <utility>
using namespace std::string_literals;
TwoBitPackedFileSignalSource::TwoBitPackedFileSignalSource(
const ConfigurationInterface* configuration,
const std::string& role,
unsigned int in_streams,
unsigned int out_streams,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role),
in_streams_(in_streams),
out_streams_(out_streams)
Concurrent_Queue<pmt::pmt_t>* queue)
: FileSourceBase(configuration, role, "Two_Bit_Packed_File_Signal_Source"s, queue, "byte"s), sample_type_(configuration->property(role + ".sample_type", "real"s)), // options: "real", "iq", "qi"
big_endian_items_(configuration->property(role + ".big_endian_items", true)),
big_endian_bytes_(configuration->property(role + ".big_endian_bytes", false)),
reverse_interleaving_(false)
{
const std::string default_filename("../data/my_capture.dat");
const std::string default_item_type("byte");
const std::string default_dump_filename("../data/my_capture_dump.dat");
const std::string default_sample_type("real");
const double default_seconds_to_skip = 0.0;
samples_ = configuration->property(role + ".samples", static_cast<uint64_t>(0));
sampling_frequency_ = configuration->property(role + ".sampling_frequency", static_cast<int64_t>(0));
filename_ = configuration->property(role + ".filename", default_filename);
// override value with commandline flag, if present
if (FLAGS_signal_source != "-")
{
filename_ = FLAGS_signal_source;
}
if (FLAGS_s != "-")
{
filename_ = FLAGS_s;
}
item_type_ = configuration->property(role + ".item_type", default_item_type);
big_endian_items_ = configuration->property(role + ".big_endian_items", true);
big_endian_bytes_ = configuration->property(role + ".big_endian_bytes", false);
sample_type_ = configuration->property(role + ".sample_type", default_sample_type); // options: "real", "iq", "qi"
repeat_ = configuration->property(role + ".repeat", false);
dump_ = configuration->property(role + ".dump", false);
dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
const double seconds_to_skip = configuration->property(role + ".seconds_to_skip", default_seconds_to_skip);
int64_t bytes_to_skip = 0;
if (item_type_ == "byte")
{
item_size_ = sizeof(char);
}
else if (item_type_ == "short")
{
// If we have shorts stored in little endian format, might as
// well read them in as bytes.
if (big_endian_items_)
{
item_size_ = sizeof(int16_t);
}
else
{
item_size_ = sizeof(char);
}
}
else
{
LOG(WARNING) << item_type_ << " unrecognized item type. Using byte.";
item_size_ = sizeof(char);
}
reverse_interleaving_ = false;
is_complex_ = true;
if (sample_type_ == "real")
{
is_complex_ = false;
}
else if (sample_type_ == "iq")
{
is_complex_ = true;
}
else if (sample_type_ == "qi")
{
is_complex_ = true;
reverse_interleaving_ = true;
}
else
{
LOG(WARNING) << sample_type_ << " unrecognized sample type. Assuming: "
<< (is_complex_ ? (reverse_interleaving_ ? "qi" : "iq") : "real");
}
try
{
file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
if (seconds_to_skip > 0)
{
bytes_to_skip = static_cast<int64_t>(
seconds_to_skip * sampling_frequency_ / 4);
if (is_complex_)
{
bytes_to_skip <<= 1;
}
file_source_->seek(bytes_to_skip, SEEK_SET);
}
unpack_samples_ = make_unpack_2bit_samples(big_endian_bytes_,
item_size_, big_endian_items_, reverse_interleaving_);
if (is_complex_)
{
char_to_float_ =
gr::blocks::interleaved_char_to_complex::make(false);
}
else
{
char_to_float_ =
gr::blocks::char_to_float::make();
}
}
catch (const std::exception& e)
{
std::cerr
<< "The receiver was configured to work with a file signal source\n"
<< "but the specified file is unreachable by GNSS-SDR.\n"
<< "Please modify your configuration file\n"
<< "and point SignalSource.filename to a valid raw data file. Then:\n"
<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf\n"
<< "Examples of configuration files available at:\n"
<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/\n";
LOG(WARNING) << "file_signal_source: Unable to open the samples file "
<< filename_.c_str() << ", exiting the program.";
throw(e);
}
DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
const size_t output_item_size = (is_complex_ ? sizeof(gr_complex) : sizeof(float));
if (samples_ == 0) // read all file
{
/*!
* BUG workaround: The GNU Radio file source does not stop the receiver after reaching the End of File.
* A possible solution is to compute the file length in samples using file size, excluding the last 2 milliseconds, and enable always the
* valve block
*/
std::ifstream file(filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
std::ifstream::pos_type size;
if (file.is_open())
{
size = file.tellg();
samples_ = floor(static_cast<double>(size) * (is_complex_ ? 2.0 : 4.0));
LOG(INFO) << "Total samples in the file= " << samples_; // 4 samples per byte
samples_ -= bytes_to_skip;
// Also skip the last two milliseconds:
samples_ -= ceil(0.002 * sampling_frequency_ / (is_complex_ ? 2.0 : 4.0));
}
else
{
std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << '\n';
LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
}
std::streamsize ss = std::cout.precision();
std::cout << std::setprecision(16);
std::cout << "Processing file " << filename_ << ", which contains " << size << " [bytes]\n";
std::cout.precision(ss);
}
CHECK(samples_ > 0) << "File does not contain enough samples to process.";
double signal_duration_s;
signal_duration_s = static_cast<double>(samples_) * (1 / static_cast<double>(sampling_frequency_));
LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]\n";
valve_ = gnss_sdr_make_valve(output_item_size, samples_, queue);
DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
if (dump_)
{
// sink_ = gr_make_file_sink(item_size_, dump_filename_.c_str());
sink_ = gr::blocks::file_sink::make(output_item_size, dump_filename_.c_str());
DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
}
if (enable_throttle_control_)
{
throttle_ = gr::blocks::throttle::make(output_item_size, sampling_frequency_);
}
DLOG(INFO) << "File source filename " << filename_;
DLOG(INFO) << "Samples " << samples_;
DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
DLOG(INFO) << "Item type " << item_type_;
DLOG(INFO) << "Item size " << item_size_;
DLOG(INFO) << "Repeat " << repeat_;
DLOG(INFO) << "Dump " << dump_;
DLOG(INFO) << "Dump filename " << dump_filename_;
if (in_streams_ > 0)
if (in_streams > 0)
{
LOG(ERROR) << "A signal source does not have an input stream";
}
if (out_streams_ > 1)
if (out_streams > 1)
{
LOG(ERROR) << "This implementation only supports one output stream";
}
}
void TwoBitPackedFileSignalSource::connect(gr::top_block_sptr top_block)
std::tuple<size_t, bool> TwoBitPackedFileSignalSource::itemTypeToSize()
{
gr::basic_block_sptr left_block = file_source_;
gr::basic_block_sptr right_block = unpack_samples_;
auto is_complex_t = false;
auto item_size = size_t(sizeof(char)); // default
top_block->connect(file_source_, 0, unpack_samples_, 0);
left_block = right_block;
if (item_type() == "byte")
{
item_size = sizeof(char);
}
else if (item_type() == "short")
{
// If we have shorts stored in little endian format, might as
// well read them in as bytes.
// TODO: this seems to make assumptions about the endianness of this machine
if (big_endian_items_)
{
item_size = sizeof(int16_t);
}
else
{
// how can this be right? the number of samples is computed based on this value
item_size = sizeof(char);
}
}
else
{
LOG(WARNING) << item_type() << " unrecognized item type. Using byte.";
}
// the complex-ness of the input is inferred from the output type
if (sample_type_ == "real")
{
is_complex_t = false;
}
else if (sample_type_ == "iq")
{
is_complex_t = true;
}
else if (sample_type_ == "qi")
{
is_complex_t = true;
reverse_interleaving_ = true;
}
else
{
LOG(WARNING) << sample_type_ << " unrecognized sample type. Assuming: "
<< (is_complex_t ? (reverse_interleaving_ ? "qi" : "iq") : "real");
}
return std::make_tuple(item_size, is_complex_t);
}
// Each sample is 2 bits; if the item_type() is char, then the size is 8/2 = 4 packets per sample
// If the item_type() is short, then the size is 16/2 = 8 packets per sample
double TwoBitPackedFileSignalSource::packetsPerSample() const { return item_size() / 2.0; }
gnss_shared_ptr<gr::block> TwoBitPackedFileSignalSource::source() const { return char_to_float_; }
void TwoBitPackedFileSignalSource::create_file_source_hook()
{
unpack_samples_ = make_unpack_2bit_samples(big_endian_bytes_, item_size(),
big_endian_items_, reverse_interleaving_);
DLOG(INFO) << "unpack_byte_2bit_samples(" << unpack_samples_->unique_id() << ")";
if (is_complex())
{
char_to_float_ = gr::blocks::interleaved_char_to_complex::make(false);
DLOG(INFO) << "interleaved_char_to_complex(" << char_to_float_->unique_id() << ")";
}
else
{
char_to_float_ = gr::blocks::char_to_float::make();
DLOG(INFO) << "char_to_float(" << char_to_float_->unique_id() << ")";
}
}
void TwoBitPackedFileSignalSource::pre_connect_hook(gr::top_block_sptr top_block)
{
top_block->connect(file_source(), 0, unpack_samples_, 0);
DLOG(INFO) << "connected file source to unpack samples";
right_block = char_to_float_;
top_block->connect(left_block, 0, right_block, 0);
left_block = right_block;
top_block->connect(unpack_samples_, 0, char_to_float_, 0);
DLOG(INFO) << "connected unpack samples to char to float";
if (enable_throttle_control_)
{
right_block = throttle_;
top_block->connect(left_block, 0, right_block, 0);
left_block = right_block;
DLOG(INFO) << " connected to throttle";
}
top_block->connect(left_block, 0, valve_, 0);
DLOG(INFO) << "connected to valve";
if (dump_)
{
top_block->connect(valve_, 0, sink_, 0);
DLOG(INFO) << "connected valve to file sink";
}
}
void TwoBitPackedFileSignalSource::disconnect(gr::top_block_sptr top_block)
void TwoBitPackedFileSignalSource::pre_disconnect_hook(gr::top_block_sptr top_block)
{
gr::basic_block_sptr left_block = file_source_;
gr::basic_block_sptr right_block = unpack_samples_;
top_block->disconnect(file_source_, 0, unpack_samples_, 0);
left_block = right_block;
top_block->disconnect(file_source(), 0, unpack_samples_, 0);
DLOG(INFO) << "disconnected file source to unpack samples";
right_block = char_to_float_;
top_block->disconnect(left_block, 0, right_block, 0);
left_block = right_block;
top_block->disconnect(unpack_samples_, 0, char_to_float_, 0);
DLOG(INFO) << "disconnected unpack samples to char to float";
if (enable_throttle_control_)
{
right_block = throttle_;
top_block->disconnect(left_block, 0, right_block, 0);
left_block = right_block;
DLOG(INFO) << " disconnected to throttle";
}
top_block->disconnect(left_block, 0, valve_, 0);
DLOG(INFO) << "disconnected to valve";
if (dump_)
{
top_block->disconnect(valve_, 0, sink_, 0);
DLOG(INFO) << "disconnected valve to file sink";
}
}
gr::basic_block_sptr TwoBitPackedFileSignalSource::get_left_block()
{
LOG(WARNING) << "Left block of a signal source should not be retrieved";
// return gr_block_sptr();
return gr::blocks::file_source::sptr();
}
gr::basic_block_sptr TwoBitPackedFileSignalSource::get_right_block()
{
return valve_;
}

94
src/algorithms/signal_source/adapters/two_bit_packed_file_signal_source.h
View File

@ -21,17 +21,9 @@
#ifndef GNSS_SDR_TWO_BIT_PACKED_FILE_SIGNAL_SOURCE_H
#define GNSS_SDR_TWO_BIT_PACKED_FILE_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "file_source_base.h"
#include "unpack_2bit_samples.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/blocks/file_source.h>
#include <gnuradio/blocks/interleaved_char_to_complex.h>
#include <gnuradio/blocks/throttle.h>
#include <gnuradio/hier_block2.h>
#include <pmt/pmt.h>
#include <cstdint>
#include <string>
/** \addtogroup Signal_Source
@ -46,7 +38,7 @@ class ConfigurationInterface;
* \brief Class that reads signals samples from a file
* and adapts it to a SignalSourceInterface
*/
class TwoBitPackedFileSignalSource : public GNSSBlockInterface
class TwoBitPackedFileSignalSource : public FileSourceBase
{
public:
TwoBitPackedFileSignalSource(const ConfigurationInterface* configuration, const std::string& role,
@ -54,54 +46,8 @@ public:
Concurrent_Queue<pmt::pmt_t>* queue);
~TwoBitPackedFileSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "Two_Bit_Packed_File_Signal_Source".
*/
inline std::string implementation() override
{
return "Two_Bit_Packed_File_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
}
void connect(gr::top_block_sptr top_block) override;
void disconnect(gr::top_block_sptr top_block) override;
gr::basic_block_sptr get_left_block() override;
gr::basic_block_sptr get_right_block() override;
inline std::string filename() const
{
return filename_;
}
inline std::string item_type() const
{
return item_type_;
}
inline bool repeat() const
{
return repeat_;
}
inline int64_t sampling_frequency() const
{
return sampling_frequency_;
}
inline uint64_t samples() const
{
return samples_;
}
private:
inline bool big_endian_items() const
{
return big_endian_items_;
@ -112,41 +58,27 @@ public:
return big_endian_bytes_;
}
inline bool is_complex() const
{
return is_complex_;
}
inline bool reverse_interleaving() const
{
return reverse_interleaving_;
}
protected:
std::tuple<size_t, bool> itemTypeToSize() override;
double packetsPerSample() const override;
gnss_shared_ptr<gr::block> source() const override;
void create_file_source_hook() override;
void pre_connect_hook(gr::top_block_sptr top_block) override;
void pre_disconnect_hook(gr::top_block_sptr top_block) override;
private:
gr::blocks::file_source::sptr file_source_;
unpack_2bit_samples_sptr unpack_samples_;
gr::basic_block_sptr char_to_float_;
gnss_shared_ptr<gr::block> valve_;
gr::blocks::file_sink::sptr sink_;
gr::blocks::throttle::sptr throttle_;
std::string filename_;
std::string item_type_;
std::string dump_filename_;
std::string role_;
std::string sample_type_;
uint64_t samples_;
int64_t sampling_frequency_;
size_t item_size_;
unsigned int in_streams_;
unsigned int out_streams_;
bool big_endian_items_;
bool big_endian_bytes_;
bool is_complex_;
bool reverse_interleaving_;
bool repeat_;
bool dump_;
// Throttle control
bool enable_throttle_control_;
unpack_2bit_samples_sptr unpack_samples_;
gnss_shared_ptr<gr::block> char_to_float_;
};

6
src/algorithms/signal_source/adapters/uhd_signal_source.cc
View File

@ -17,6 +17,7 @@
#include "uhd_signal_source.h"
#include "GPS_L1_CA.h"
#include "configuration_interface.h"
#include "gnss_sdr_string_literals.h"
#include "gnss_sdr_valve.h"
#include <glog/logging.h>
#include <uhd/exception.hpp>
@ -25,10 +26,13 @@
#include <iostream>
#include <utility>
using namespace std::string_literals;
UhdSignalSource::UhdSignalSource(const ConfigurationInterface* configuration,
const std::string& role, unsigned int in_stream, unsigned int out_stream,
Concurrent_Queue<pmt::pmt_t>* queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream)
Concurrent_Queue<pmt::pmt_t>* queue)
: SignalSourceBase(configuration, role, "UHD_Signal_Source"s), in_stream_(in_stream), out_stream_(out_stream)
{
// DUMP PARAMETERS
const std::string empty;

18
src/algorithms/signal_source/adapters/uhd_signal_source.h
View File

@ -18,7 +18,7 @@
#define GNSS_SDR_UHD_SIGNAL_SOURCE_H
#include "concurrent_queue.h"
#include "gnss_block_interface.h"
#include "signal_source_base.h"
#include <gnuradio/blocks/file_sink.h>
#include <gnuradio/hier_block2.h>
#include <gnuradio/uhd/usrp_source.h>
@ -38,7 +38,7 @@ class ConfigurationInterface;
/*!
* \brief This class reads samples from a UHD device (see http://code.ettus.com/redmine/ettus/projects/uhd/wiki)
*/
class UhdSignalSource : public GNSSBlockInterface
class UhdSignalSource : public SignalSourceBase
{
public:
UhdSignalSource(const ConfigurationInterface* configuration,
@ -47,19 +47,6 @@ public:
~UhdSignalSource() = default;
inline std::string role() override
{
return role_;
}
/*!
* \brief Returns "UHD_Signal_Source"
*/
inline std::string implementation() override
{
return "UHD_Signal_Source";
}
inline size_t item_size() override
{
return item_size_;
@ -89,7 +76,6 @@ private:
std::string item_type_;
std::string subdevice_;
std::string clock_source_;
std::string role_;
double sample_rate_;
size_t item_size_;

65
src/core/interfaces/signal_source_interface.h Normal file
View File

@ -0,0 +1,65 @@
/*!
* \signal_source_interface.h
* \brief Header file of the interface to a signal_source GNSS block.
* \author Jim Melton, 2020. jim.melton(at)sncorp.com
*
* This header file contains the interface to an abstract class for
* signal sources. Since all its methods are virtual, this class
* cannot be instantiated directly, and a subclass can only be
* instantiated directly if all inherited pure virtual methods have
* been implemented by that class or a parent class.
*
* -----------------------------------------------------------------------------
*
* Copyright (C) 2010-2020 (see AUTHORS file for a list of contributors)
*
* GNSS-SDR is a software defined Global Navigation
* Satellite Systems receiver
*
* This file is part of GNSS-SDR.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
* -----------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_SIGNAL_SOURCE_INTERFACE_H
#define GNSS_SDR_SIGNAL_SOURCE_INTERFACE_H
#include "gnss_block_interface.h"
#include <glog/logging.h>
/** \addtogroup Core
* \{ */
/** \addtogroup GNSS_Block_Interfaces GNSS block interfaces
* GNSS block interfaces.
* \{ */
/*! \brief This abstract class represents an interface to signal_source GNSS block.
*
* Abstract class for signal sources. Since all its methods are virtual,
* this class cannot be instantiated directly, and a subclass can only be
* instantiated directly if all inherited pure virtual methods have been
* implemented by that class or a parent class.
*/
class SignalSourceInterface : public GNSSBlockInterface
{
public:
virtual size_t getRfChannels() const = 0;
protected:
SignalSourceInterface()
{
VLOG(1) << "SignalSourceInterface: " << this << " ctor";
}
public: // required for polymorphic destruction
~SignalSourceInterface()
{
VLOG(1) << "SignalSourceInterface: " << this << " dtor";
}
};
#endif

3
src/core/receiver/CMakeLists.txt
View File

@ -151,6 +151,7 @@ target_link_libraries(core_receiver
PUBLIC
core_libs
PRIVATE
algorithms_libs
core_monitor
signal_source_adapters
data_type_adapters
@ -169,8 +170,6 @@ target_link_libraries(core_receiver
Armadillo::armadillo
)
target_include_directories(core_receiver PRIVATE ${CMAKE_SOURCE_DIR}/src/algorithms/libs)
if(ENABLE_ARMA_NO_DEBUG)
target_compile_definitions(core_receiver
PRIVATE -DARMA_NO_BOUND_CHECKING=1

1310
src/core/receiver/gnss_block_factory.cc
View File

File diff suppressed because it is too large Load Diff

3
src/core/receiver/gnss_block_factory.h
View File

@ -38,6 +38,7 @@
class ConfigurationInterface;
class GNSSBlockInterface;
class SignalSourceInterface;
class AcquisitionInterface;
class TrackingInterface;
class TelemetryDecoderInterface;
@ -51,7 +52,7 @@ public:
GNSSBlockFactory() = default;
~GNSSBlockFactory() = default;
std::unique_ptr<GNSSBlockInterface> GetSignalSource(const ConfigurationInterface* configuration,
std::unique_ptr<SignalSourceInterface> GetSignalSource(const ConfigurationInterface* configuration,
Concurrent_Queue<pmt::pmt_t>* queue, int ID = -1);
std::unique_ptr<GNSSBlockInterface> GetSignalConditioner(const ConfigurationInterface* configuration, int ID = -1);

193
src/core/receiver/gnss_flowgraph.cc
View File

@ -36,6 +36,7 @@
#include "gnss_satellite.h"
#include "gnss_sdr_make_unique.h"
#include "gnss_synchro_monitor.h"
#include "signal_source_interface.h"
#include <boost/lexical_cast.hpp> // for boost::lexical_cast
#include <boost/tokenizer.hpp> // for boost::tokenizer
#include <glog/logging.h> // for LOG
@ -100,50 +101,19 @@ void GNSSFlowgraph::init()
// 1. read the number of RF front-ends available (one file_source per RF front-end)
sources_count_ = configuration_->property("Receiver.sources_count", 1);
int RF_Channels = 0;
int signal_conditioner_ID = 0;
if (sources_count_ > 1)
for (int i = 0; i < sources_count_; i++)
{
for (int i = 0; i < sources_count_; i++)
std::cout << "Creating source " << i << '\n';
sig_source_.push_back(block_factory->GetSignalSource(configuration_.get(), queue_.get(), i));
auto& src = sig_source_.back();
auto RF_Channels = src->getRfChannels();
std::cout << "RF Channels " << RF_Channels << '\n';
for (auto j = 0U; j < RF_Channels; ++j)
{
std::cout << "Creating source " << i << '\n';
sig_source_.push_back(block_factory->GetSignalSource(configuration_.get(), queue_.get(), i));
// TODO: Create a class interface for SignalSources, derived from GNSSBlockInterface.
// Include GetRFChannels in the interface to avoid read config parameters here
// read the number of RF channels for each front-end
RF_Channels = configuration_->property(sig_source_.at(i)->role() + ".RF_channels", 1);
std::cout << "RF Channels " << RF_Channels << '\n';
for (int j = 0; j < RF_Channels; j++)
{
sig_conditioner_.push_back(block_factory->GetSignalConditioner(configuration_.get(), signal_conditioner_ID));
signal_conditioner_ID++;
}
}
}
else
{
// backwards compatibility for old config files
sig_source_.push_back(block_factory->GetSignalSource(configuration_.get(), queue_.get(), -1));
// TODO: Create a class interface for SignalSources, derived from GNSSBlockInterface.
// Include GetRFChannels in the interface to avoid read config parameters here
// read the number of RF channels for each front-end
if (sig_source_.at(0) != nullptr)
{
RF_Channels = configuration_->property(sig_source_.at(0)->role() + ".RF_channels", 0);
}
if (RF_Channels != 0)
{
for (int j = 0; j < RF_Channels; j++)
{
sig_conditioner_.push_back(block_factory->GetSignalConditioner(configuration_.get(), signal_conditioner_ID));
signal_conditioner_ID++;
}
}
else
{
// old config file, single signal source and single channel, not specified
sig_conditioner_.push_back(block_factory->GetSignalConditioner(configuration_.get(), -1));
sig_conditioner_.push_back(block_factory->GetSignalConditioner(configuration_.get(), signal_conditioner_ID));
signal_conditioner_ID++;
}
}
@ -721,65 +691,66 @@ int GNSSFlowgraph::disconnect_signal_sources()
int GNSSFlowgraph::connect_signal_conditioners()
{
for (auto& sig : sig_conditioner_)
int error = 1; // this should be bool (true)
try
{
try
for (auto& sig : sig_conditioner_)
{
sig->connect(top_block_);
}
catch (const std::exception& e)
DLOG(INFO) << "Signal Conditioner blocks successfully connected to the top_block";
error = 0; // false
}
catch (const std::exception& e)
{
LOG(ERROR) << "Can't connect signal conditioner block internally: " << e.what();
top_block_->disconnect_all();
std::string reported_error(e.what());
if (std::string::npos != reported_error.find(std::string("itemsize mismatch")))
{
std::string replace_me("copy");
size_t pos = reported_error.find(replace_me);
while (pos != std::string::npos)
{
size_t len = replace_me.length();
reported_error.replace(pos, len, "Pass_Through");
pos = reported_error.find(replace_me, pos + 1);
}
help_hint_ += " * Blocks within the Signal Conditioner are connected with mismatched input/ouput item size\n";
help_hint_ += " Reported error: " + reported_error + '\n';
help_hint_ += " Check the Signal Conditioner documentation at https://gnss-sdr.org/docs/sp-blocks/signal-conditioner/\n";
}
if (std::string::npos != reported_error.find(std::string("DataTypeAdapter")))
{
help_hint_ += " * The DataTypeAdapter implementation set in the configuration file does not exist\n";
help_hint_ += " Check the DataTypeAdapter documentation at https://gnss-sdr.org/docs/sp-blocks/data-type-adapter/\n";
}
if (std::string::npos != reported_error.find(std::string("InputFilter")))
{
LOG(ERROR) << "Can't connect signal conditioner block internally: " << e.what();
top_block_->disconnect_all();
std::string reported_error(e.what());
if (std::string::npos != reported_error.find(std::string("itemsize mismatch")))
{
std::string replace_me("copy");
size_t pos = reported_error.find(replace_me);
while (pos != std::string::npos)
{
size_t len = replace_me.length();
reported_error.replace(pos, len, "Pass_Through");
pos = reported_error.find(replace_me, pos + 1);
}
help_hint_ += " * Blocks within the Signal Conditioner are connected with mismatched input/ouput item size\n";
help_hint_ += " Reported error: " + reported_error + '\n';
help_hint_ += " Check the Signal Conditioner documentation at https://gnss-sdr.org/docs/sp-blocks/signal-conditioner/\n";
help_hint_ += " * The configured InputFilter input/output item types are not well defined.\n";
}
if (std::string::npos != reported_error.find(std::string("DataTypeAdapter")))
else
{
help_hint_ += " * The DataTypeAdapter implementation set in the configuration file does not exist\n";
help_hint_ += " Check the DataTypeAdapter documentation at https://gnss-sdr.org/docs/sp-blocks/data-type-adapter/\n";
help_hint_ += " * The InputFilter implementation set in the configuration file does not exist\n";
}
if (std::string::npos != reported_error.find(std::string("InputFilter")))
help_hint_ += " Check the InputFilter documentation at https://gnss-sdr.org/docs/sp-blocks/input-filter/\n";
}
if (std::string::npos != reported_error.find(std::string("Resampler")))
{
if (std::string::npos != reported_error.find(std::string("itemsize mismatch")))
{
if (std::string::npos != reported_error.find(std::string("itemsize mismatch")))
{
help_hint_ += " * The configured InputFilter input/output item types are not well defined.\n";
}
else
{
help_hint_ += " * The InputFilter implementation set in the configuration file does not exist\n";
}
help_hint_ += " Check the InputFilter documentation at https://gnss-sdr.org/docs/sp-blocks/input-filter/\n";
help_hint_ += " * The configured Resampler item type is not well defined.\n";
}
if (std::string::npos != reported_error.find(std::string("Resampler")))
else
{
if (std::string::npos != reported_error.find(std::string("itemsize mismatch")))
{
help_hint_ += " * The configured Resampler item type is not well defined.\n";
}
else
{
help_hint_ += " * The Resampler implementation set in the configuration file does not exist\n";
}
help_hint_ += " Check the Resampler documentation at https://gnss-sdr.org/docs/sp-blocks/resampler/\n";
help_hint_ += " * The Resampler implementation set in the configuration file does not exist\n";
}
return 1;
help_hint_ += " Check the Resampler documentation at https://gnss-sdr.org/docs/sp-blocks/resampler/\n";
}
}
DLOG(INFO) << "Signal Conditioner blocks successfully connected to the top_block";
return 0;
return error;
}
@ -1028,42 +999,40 @@ int GNSSFlowgraph::disconnect_fpga_sample_counter()
int GNSSFlowgraph::connect_signal_sources_to_signal_conditioners()
{
int RF_Channels = 0;
unsigned int signal_conditioner_ID = 0;
for (int i = 0; i < sources_count_; i++)
{
try
{
auto& src = sig_source_.at(i);
// TODO: Remove this array implementation and create generic multistream connector
// (if a signal source has more than 1 stream, then connect it to the multistream signal conditioner)
if (sig_source_.at(i)->implementation() == "Raw_Array_Signal_Source")
if (src->implementation() == "Raw_Array_Signal_Source")
{
// Multichannel Array
std::cout << "ARRAY MODE\n";
for (int j = 0; j < GNSS_SDR_ARRAY_SIGNAL_CONDITIONER_CHANNELS; j++)
{
std::cout << "connecting ch " << j << '\n';
top_block_->connect(sig_source_.at(i)->get_right_block(), j, sig_conditioner_.at(i)->get_left_block(), j);
top_block_->connect(src->get_right_block(), j, sig_conditioner_.at(i)->get_left_block(), j);
}
}
else
{
// TODO: Create a class interface for SignalSources, derived from GNSSBlockInterface.
// Include GetRFChannels in the interface to avoid read config parameters here
// read the number of RF channels for each front-end
RF_Channels = configuration_->property(sig_source_.at(i)->role() + ".RF_channels", 1);
auto RF_Channels = src->getRfChannels();
for (int j = 0; j < RF_Channels; j++)
for (auto j = 0U; j < RF_Channels; ++j)
{
// Connect the multichannel signal source to multiple signal conditioners
// GNURADIO max_streams=-1 means infinite ports!
size_t output_size = sig_source_.at(i)->item_size();
size_t output_size = src->item_size();
size_t input_size = sig_conditioner_.at(signal_conditioner_ID)->get_left_block()->input_signature()->sizeof_stream_item(0);
// Check configuration inconsistencies
if (output_size != input_size)
{
help_hint_ += " * The Signal Source implementation " + sig_source_.at(i)->implementation() + " has an output with a ";
help_hint_ += sig_source_.at(i)->role() + ".item_size of " + std::to_string(output_size);
help_hint_ += " * The Signal Source implementation " + src->implementation() + " has an output with a ";
help_hint_ += src->role() + ".item_size of " + std::to_string(output_size);
help_hint_ += " bytes, but it is connected to the Signal Conditioner implementation ";
help_hint_ += sig_conditioner_.at(signal_conditioner_ID)->implementation() + " with input item size of " + std::to_string(input_size) + " bytes.\n";
help_hint_ += " Output ports must be connected to input ports with the same item size.\n";
@ -1071,12 +1040,12 @@ int GNSSFlowgraph::connect_signal_sources_to_signal_conditioners()
return 1;
}
if (sig_source_.at(i)->get_right_block()->output_signature()->max_streams() > 1 or sig_source_.at(i)->get_right_block()->output_signature()->max_streams() == -1)
if (src->get_right_block()->output_signature()->max_streams() > 1 or src->get_right_block()->output_signature()->max_streams() == -1)
{
if (sig_conditioner_.size() > signal_conditioner_ID)
{
LOG(INFO) << "connecting sig_source_ " << i << " stream " << j << " to conditioner " << j;
top_block_->connect(sig_source_.at(i)->get_right_block(), j, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
LOG(INFO) << "connecting sig_source_ " << i << " stream " << j << " to conditioner " << signal_conditioner_ID;
top_block_->connect(src->get_right_block(), j, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
}
}
else
@ -1084,14 +1053,14 @@ int GNSSFlowgraph::connect_signal_sources_to_signal_conditioners()
if (j == 0)
{
// RF_channel 0 backward compatibility with single channel sources
LOG(INFO) << "connecting sig_source_ " << i << " stream " << 0 << " to conditioner " << j;
top_block_->connect(sig_source_.at(i)->get_right_block(), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
LOG(INFO) << "connecting sig_source_ " << i << " stream " << 0 << " to conditioner " << signal_conditioner_ID;
top_block_->connect(src->get_right_block(), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
}
else
{
// Multiple channel sources using multiple output blocks of single channel (requires RF_channel selector in call)
LOG(INFO) << "connecting sig_source_ " << i << " stream " << j << " to conditioner " << j;
top_block_->connect(sig_source_.at(i)->get_right_block(j), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
LOG(INFO) << "connecting sig_source_ " << i << " stream " << j << " to conditioner " << signal_conditioner_ID;
top_block_->connect(src->get_right_block(j), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
}
}
signal_conditioner_ID++;
@ -1127,46 +1096,44 @@ int GNSSFlowgraph::connect_signal_sources_to_signal_conditioners()
int GNSSFlowgraph::disconnect_signal_sources_from_signal_conditioners()
{
int RF_Channels = 0;
int signal_conditioner_ID = 0;
for (int i = 0; i < sources_count_; i++)
{
try
{
auto& src = sig_source_.at(i);
// TODO: Remove this array implementation and create generic multistream connector
// (if a signal source has more than 1 stream, then connect it to the multistream signal conditioner)
if (sig_source_.at(i)->implementation() == "Raw_Array_Signal_Source")
if (src->implementation() == "Raw_Array_Signal_Source")
{
// Multichannel Array
for (int j = 0; j < GNSS_SDR_ARRAY_SIGNAL_CONDITIONER_CHANNELS; j++)
{
top_block_->disconnect(sig_source_.at(i)->get_right_block(), j, sig_conditioner_.at(i)->get_left_block(), j);
top_block_->disconnect(src->get_right_block(), j, sig_conditioner_.at(i)->get_left_block(), j);
}
}
else
{
// TODO: Create a class interface for SignalSources, derived from GNSSBlockInterface.
// Include GetRFChannels in the interface to avoid read config parameters here
// read the number of RF channels for each front-end
RF_Channels = configuration_->property(sig_source_.at(i)->role() + ".RF_channels", 1);
auto RF_Channels = src->getRfChannels();
for (int j = 0; j < RF_Channels; j++)
for (auto j = 0U; j < RF_Channels; ++j)
{
if (sig_source_.at(i)->get_right_block()->output_signature()->max_streams() > 1 or sig_source_.at(i)->get_right_block()->output_signature()->max_streams() == -1)
if (src->get_right_block()->output_signature()->max_streams() > 1 or src->get_right_block()->output_signature()->max_streams() == -1)
{
top_block_->disconnect(sig_source_.at(i)->get_right_block(), j, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
top_block_->disconnect(src->get_right_block(), j, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
}
else
{
if (j == 0)
{
// RF_channel 0 backward compatibility with single channel sources
top_block_->disconnect(sig_source_.at(i)->get_right_block(), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
top_block_->disconnect(src->get_right_block(), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
}
else
{
// Multiple channel sources using multiple output blocks of single channel (requires RF_channel selector in call)
top_block_->disconnect(sig_source_.at(i)->get_right_block(j), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
top_block_->disconnect(src->get_right_block(j), 0, sig_conditioner_.at(signal_conditioner_ID)->get_left_block(), 0);
}
}
signal_conditioner_ID++;

3
src/core/receiver/gnss_flowgraph.h
View File

@ -53,6 +53,7 @@ class ChannelInterface;
class ConfigurationInterface;
class GNSSBlockInterface;
class Gnss_Satellite;
class SignalSourceInterface;
/*! \brief This class represents a GNSS flow graph.
*
@ -230,7 +231,7 @@ private:
std::shared_ptr<ConfigurationInterface> configuration_;
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue_;
std::vector<std::shared_ptr<GNSSBlockInterface>> sig_source_;
std::vector<std::shared_ptr<SignalSourceInterface>> sig_source_;
std::vector<std::shared_ptr<GNSSBlockInterface>> sig_conditioner_;
std::vector<std::shared_ptr<ChannelInterface>> channels_;
std::shared_ptr<GNSSBlockInterface> observables_;

9
src/tests/unit-tests/control-plane/gnss_block_factory_test.cc
View File

@ -28,6 +28,7 @@
#include "in_memory_configuration.h"
#include "observables_interface.h"
#include "pvt_interface.h"
#include "signal_source_interface.h"
#include "telemetry_decoder_interface.h"
#include "tracking_interface.h"
#include <gtest/gtest.h>
@ -45,7 +46,7 @@ TEST(GNSSBlockFactoryTest, InstantiateFileSignalSource)
// Example of a factory as a shared_ptr
std::shared_ptr<GNSSBlockFactory> factory = std::make_shared<GNSSBlockFactory>();
// Example of a block as a shared_ptr
std::shared_ptr<GNSSBlockInterface> signal_source = factory->GetSignalSource(configuration.get(), queue.get());
auto signal_source = factory->GetSignalSource(configuration.get(), queue.get());
EXPECT_STREQ("SignalSource", signal_source->role().c_str());
EXPECT_STREQ("File_Signal_Source", signal_source->implementation().c_str());
}
@ -59,7 +60,7 @@ TEST(GNSSBlockFactoryTest, InstantiateWrongSignalSource)
// Example of a factory as a unique_ptr
std::unique_ptr<GNSSBlockFactory> factory = std::make_unique<GNSSBlockFactory>();
// Example of a block as a unique_ptr
std::unique_ptr<GNSSBlockInterface> signal_source = factory->GetSignalSource(configuration.get(), queue.get());
auto signal_source = factory->GetSignalSource(configuration.get(), queue.get());
EXPECT_EQ(nullptr, signal_source);
}
@ -350,8 +351,8 @@ TEST(GNSSBlockFactoryTest, InstantiateWrongPvt)
{
std::shared_ptr<InMemoryConfiguration> configuration = std::make_shared<InMemoryConfiguration>();
configuration->set_property("PVT.implementation", "Pepito");
std::unique_ptr<GNSSBlockFactory> factory = std::make_unique<GNSSBlockFactory>();
auto factory = std::make_unique<GNSSBlockFactory>();
std::shared_ptr<GNSSBlockInterface> pvt_ = factory->GetPVT(configuration.get());
std::shared_ptr<PvtInterface> pvt = std::dynamic_pointer_cast<PvtInterface>(pvt_);
auto pvt = std::dynamic_pointer_cast<PvtInterface>(pvt_);
EXPECT_EQ(nullptr, pvt);
}

6
src/tests/unit-tests/signal-processing-blocks/sources/file_signal_source_test.cc
View File

@ -53,5 +53,9 @@ TEST(FileSignalSource, InstantiateFileNotExists)
config->set_property("Test.item_type", "gr_complex");
config->set_property("Test.repeat", "false");
EXPECT_THROW({ auto uptr = std::make_shared<FileSignalSource>(config.get(), "Test", 0, 1, queue.get()); }, std::exception);
// the file existence test was moved from the ctor to the connect() call. The argument to
// connect doesn't matter, since the exception should be thrown sooner than any connections
auto top = gr::make_top_block("GNSSUnitTest");
auto uptr = std::make_shared<FileSignalSource>(config.get(), "Test", 0, 1, queue.get());
EXPECT_THROW({ uptr->connect(top); }, std::exception);
}

64
src/utils/front-end-cal/main.cc
View File

@ -36,7 +36,8 @@
#include "gps_iono.h"
#include "gps_l1_ca_pcps_acquisition_fine_doppler.h"
#include "gps_utc_model.h"
#include <boost/any.hpp> // for bad_any_cast
#include "signal_source_interface.h" // for SignalSourceInterface
#include <boost/any.hpp> // for bad_any_cast
#include <boost/exception/exception.hpp>
#include <boost/lexical_cast.hpp>
#include <gflags/gflags.h>
@ -181,6 +182,10 @@ void wait_message()
bool front_end_capture(const std::shared_ptr<ConfigurationInterface>& configuration)
{
auto success = false;
std::string trace_step;
gr::top_block_sptr top_block;
GNSSBlockFactory block_factory;
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue;
@ -188,43 +193,37 @@ bool front_end_capture(const std::shared_ptr<ConfigurationInterface>& configurat
queue = std::make_shared<Concurrent_Queue<pmt::pmt_t>>();
top_block = gr::make_top_block("Acquisition test");
std::shared_ptr<GNSSBlockInterface> source;
try
{
// Note: the block_factory returns a unique_ptr (what you would get with an "auto"
// declaration), but the flowgraph uses shared_ptr. Without further understanding of why
// it should matter in this context, used shared_ptr throughout
std::shared_ptr<SignalSourceInterface> source;
std::shared_ptr<GNSSBlockInterface> conditioner;
trace_step = "creating source";
source = block_factory.GetSignalSource(configuration.get(), queue.get());
}
catch (const boost::exception_ptr& e)
{
std::cout << "Exception caught in creating source " << e << '\n';
return false;
}
std::shared_ptr<GNSSBlockInterface> conditioner;
try
{
trace_step = "creating signal conditioner";
conditioner = block_factory.GetSignalConditioner(configuration.get());
}
catch (const boost::exception_ptr& e)
{
std::cout << "Exception caught in creating signal conditioner " << e << '\n';
return false;
}
gr::block_sptr sink;
sink = gr::blocks::file_sink::make(sizeof(gr_complex), "tmp_capture.dat");
// -- Find number of samples per spreading code ---
int64_t fs_in_ = configuration->property("GNSS-SDR.internal_fs_sps", 2048000);
int samples_per_code = round(fs_in_ / (GPS_L1_CA_CODE_RATE_CPS / GPS_L1_CA_CODE_LENGTH_CHIPS));
int nsamples = samples_per_code * 50;
trace_step = "unexpected in setup code";
int skip_samples = fs_in_ * 5; // skip 5 seconds
gr::block_sptr sink;
sink = gr::blocks::file_sink::make(sizeof(gr_complex), "tmp_capture.dat");
gr::block_sptr head = gr::blocks::head::make(sizeof(gr_complex), nsamples);
// -- Find number of samples per spreading code ---
int64_t fs_in_ = configuration->property("GNSS-SDR.internal_fs_sps", 2048000);
int samples_per_code = round(fs_in_ / (GPS_L1_CA_CODE_RATE_CPS / GPS_L1_CA_CODE_LENGTH_CHIPS));
int nsamples = samples_per_code * 50;
gr::block_sptr skiphead = gr::blocks::skiphead::make(sizeof(gr_complex), skip_samples);
int skip_samples = fs_in_ * 5; // skip 5 seconds
try
{
gr::block_sptr head = gr::blocks::head::make(sizeof(gr_complex), nsamples);
gr::block_sptr skiphead = gr::blocks::skiphead::make(sizeof(gr_complex), skip_samples);
trace_step = "connecting the GNU Radio blocks";
source->connect(top_block);
conditioner->connect(top_block);
top_block->connect(source->get_right_block(), 0, conditioner->get_left_block(), 0);
@ -232,14 +231,15 @@ bool front_end_capture(const std::shared_ptr<ConfigurationInterface>& configurat
top_block->connect(skiphead, 0, head, 0);
top_block->connect(head, 0, sink, 0);
top_block->run();
success = true;
}
catch (const std::exception& e)
catch (std::exception const& e)
{
std::cout << "Failure connecting the GNU Radio blocks " << e.what() << '\n';
return false;
std::cout << "Exception caught " << trace_step << ": " << e.what() << std::endl;
}
return true;
return success;
}