mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2025-10-31 15:23:04 +00:00
Merge branch 'antonioramosdet-spirent_signal_source' into next
This commit is contained in:
Carles Fernandez
@@ -139,6 +139,7 @@ set(SIGNAL_SOURCE_ADAPTER_SOURCES file_signal_source.cc
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|||||||
gen_signal_source.cc
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gen_signal_source.cc
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nsr_file_signal_source.cc
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nsr_file_signal_source.cc
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spir_file_signal_source.cc
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spir_file_signal_source.cc
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||||||
|
spir_gss6450_file_signal_source.cc
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||||||
rtl_tcp_signal_source.cc
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rtl_tcp_signal_source.cc
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||||||
${OPT_DRIVER_SOURCES}
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${OPT_DRIVER_SOURCES}
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)
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)
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@@ -0,0 +1,284 @@
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|
/*!
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* \file spir_gss6450_file_signal_source.cc
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* \brief Implementation of a class that reads signals samples from a SPIR file
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* and adapts it to a SignalSourceInterface.
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* \author Antonio Ramos, 2017 antonio.ramos(at)cttc.es
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*
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* -------------------------------------------------------------------------
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||||||
|
*
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||||||
|
* Copyright (C) 2010-2017 (see AUTHORS file for a list of contributors)
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||||||
|
*
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||||||
|
* GNSS-SDR is a software defined Global Navigation
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||||||
|
* Satellite Systems receiver
|
||||||
|
*
|
||||||
|
* This file is not part of GNSS-SDR.
|
||||||
|
*
|
||||||
|
* GNSS-SDR is free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
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||||||
|
* -------------------------------------------------------------------------
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||||||
|
*/
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#include "spir_gss6450_file_signal_source.h"
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#include <exception>
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#include <fstream>
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#include <iomanip>
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#include <iostream>
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#include <cstdio>
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#include <glog/logging.h>
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#include "configuration_interface.h"
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using google::LogMessage;
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SpirGSS6450FileSignalSource::SpirGSS6450FileSignalSource(ConfigurationInterface* configuration,
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std::string role, unsigned int in_streams, unsigned int out_streams, gr::msg_queue::sptr queue) :
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|
role_(role), in_streams_(in_streams), out_streams_(out_streams), queue_(queue)
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||||||
|
{
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|
std::string default_filename = "../data/my_capture.dat";
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std::string default_dump_filename = "../data/my_capture_dump.dat";
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item_type_ = "int";
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|
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samples_ = configuration->property(role + ".samples", 0);
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sampling_frequency_ = configuration->property(role + ".sampling_frequency", 0.0);
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filename_ = configuration->property(role + ".filename", default_filename);
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repeat_ = configuration->property(role + ".repeat", false);
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dump_ = configuration->property(role + ".dump", false);
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endian_swap_ = configuration->property(role + ".endian", false);
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dump_filename_ = configuration->property(role + ".dump_filename", default_dump_filename);
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enable_throttle_control_ = configuration->property(role + ".enable_throttle_control", false);
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adc_bits_ = configuration->property(role + ".adc_bits", 4);
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n_channels_ = configuration->property(role + ".total_channels", 1);
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sel_ch_ = configuration->property(role + ".sel_ch", 1);
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item_size_ = sizeof(int);
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long bytes_seek = configuration->property(role + ".bytes_to_skip", 65536);
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double sample_size_byte = static_cast<double>(adc_bits_) / 4.0;
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|
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if(sel_ch_ > n_channels_) { LOG(WARNING) << "Invalid RF channel selection"; }
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if(n_channels_ > 1)
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|
{
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for(unsigned int i = 0; i < (n_channels_ - 1); i++)
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||||||
|
{
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null_sinks_.push_back(gr::blocks::null_sink::make(item_size_));
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|
}
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DLOG(INFO)<< "NUMBER OF NULL SINKS = " << null_sinks_.size();
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}
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try
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{
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file_source_ = gr::blocks::file_source::make(item_size_, filename_.c_str(), repeat_);
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file_source_->seek(bytes_seek / item_size_, SEEK_SET);
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unpack_spir_ = make_unpack_spir_gss6450_samples(adc_bits_);
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deint_ = gr::blocks::deinterleave::make(item_size_);
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}
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catch (const std::exception &e)
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{
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std::cerr
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<< "The receiver was configured to work with a file signal source "
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<< std::endl
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<< "but the specified file is unreachable by GNSS-SDR."
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<< std::endl
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<< "Please modify your configuration file"
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<< std::endl
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<< "and point SignalSource.filename to a valid raw data file. Then:"
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<< std::endl
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<< "$ gnss-sdr --config_file=/path/to/my_GNSS_SDR_configuration.conf"
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<< std::endl
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<< "Examples of configuration files available at:"
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<< std::endl
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<< GNSSSDR_INSTALL_DIR "/share/gnss-sdr/conf/"
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<< std::endl;
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LOG(WARNING) << "file_signal_source: Unable to open the samples file "
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<< filename_.c_str() << ", exiting the program.";
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throw(e);
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}
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DLOG(INFO) << "file_source(" << file_source_->unique_id() << ")";
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if(samples_ == 0) // read all file
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|
{
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/*!
|
||||||
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* 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
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* valve block
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||||||
|
*/
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||||||
|
std::ifstream file (filename_.c_str(), std::ios::in | std::ios::binary | std::ios::ate);
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||||||
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std::ifstream::pos_type size;
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|
|
||||||
|
if (file.is_open())
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||||||
|
{
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|
size = file.tellg();
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LOG(INFO) << "Total samples in the file= " << floor(static_cast<double>(size) / static_cast<double>(item_size_));
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|
}
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|
else
|
||||||
|
{
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std::cout << "file_signal_source: Unable to open the samples file " << filename_.c_str() << std::endl;
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LOG(ERROR) << "file_signal_source: Unable to open the samples file " << filename_.c_str();
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||||||
|
}
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||||||
|
std::streamsize ss = std::cout.precision();
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||||||
|
std::cout << std::setprecision(16);
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||||||
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std::cout << "Processing file " << filename_ << ", which contains " << size << " [bytes]" << std::endl;
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||||||
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std::cout.precision (ss);
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|
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|
if(size > 0)
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||||||
|
{
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samples_ = static_cast<unsigned long long>(floor(static_cast<double>(size - bytes_seek) / (sample_size_byte * static_cast<double>(n_channels_))));
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samples_ = samples_- static_cast<unsigned long long>(ceil(0.002 * sampling_frequency_)); //process all the samples available in the file excluding the last 2 ms
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||||||
|
}
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|
}
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||||||
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CHECK(samples_ > 0) << "File does not contain enough samples to process.";
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double signal_duration_s = static_cast<double>(samples_) / sampling_frequency_;
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|
LOG(INFO) << "Total number samples to be processed= " << samples_ << " GNSS signal duration= " << signal_duration_s << " [s]";
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std::cout << "GNSS signal recorded time to be processed: " << signal_duration_s << " [s]" << std::endl;
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||||||
|
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||||||
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valve_ = gnss_sdr_make_valve(sizeof(gr_complex), samples_, queue_);
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DLOG(INFO) << "valve(" << valve_->unique_id() << ")";
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|
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if (dump_)
|
||||||
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{
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sink_ = gr::blocks::file_sink::make(sizeof(gr_complex), dump_filename_.c_str());
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DLOG(INFO) << "file_sink(" << sink_->unique_id() << ")";
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|
}
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if (enable_throttle_control_)
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||||||
|
{
|
||||||
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throttle_ = gr::blocks::throttle::make(sizeof(gr_complex), sampling_frequency_);
|
||||||
|
}
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||||||
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if (endian_swap_)
|
||||||
|
{
|
||||||
|
endian_ = gr::blocks::endian_swap::make(item_size_);
|
||||||
|
}
|
||||||
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DLOG(INFO) << "File source filename " << filename_;
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||||||
|
DLOG(INFO) << "Samples " << samples_;
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||||||
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DLOG(INFO) << "Sampling frequency " << sampling_frequency_;
|
||||||
|
DLOG(INFO) << "Item type " << item_type_;
|
||||||
|
DLOG(INFO) << "Item size " << item_size_;
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||||||
|
DLOG(INFO) << "Repeat " << repeat_;
|
||||||
|
DLOG(INFO) << "Dump " << dump_;
|
||||||
|
DLOG(INFO) << "Dump filename " << dump_filename_;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
SpirGSS6450FileSignalSource::~SpirGSS6450FileSignalSource()
|
||||||
|
{}
|
||||||
|
|
||||||
|
|
||||||
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void SpirGSS6450FileSignalSource::connect(gr::top_block_sptr top_block)
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||||||
|
{
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|
if (samples_ > 0)
|
||||||
|
{
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||||||
|
top_block->connect(file_source_, 0, deint_, 0);
|
||||||
|
if(endian_swap_)
|
||||||
|
{
|
||||||
|
top_block->connect(deint_, sel_ch_ - 1, endian_ ,0);
|
||||||
|
top_block->connect(endian_, 0, unpack_spir_, 0);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
top_block->connect(deint_, sel_ch_ - 1, unpack_spir_, 0);
|
||||||
|
}
|
||||||
|
if(n_channels_ > 1)
|
||||||
|
{
|
||||||
|
unsigned int aux = 0;
|
||||||
|
for(unsigned int i = 0; i < n_channels_; i++)
|
||||||
|
{
|
||||||
|
if(i != (sel_ch_ - 1))
|
||||||
|
{
|
||||||
|
top_block->connect(deint_, i, null_sinks_.at(aux), 0);
|
||||||
|
aux++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (enable_throttle_control_)
|
||||||
|
{
|
||||||
|
top_block->connect(unpack_spir_, 0, throttle_, 0);
|
||||||
|
top_block->connect(throttle_, 0, valve_, 0);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
top_block->connect(unpack_spir_, 0, valve_, 0);
|
||||||
|
}
|
||||||
|
if(dump_)
|
||||||
|
{
|
||||||
|
top_block->connect(valve_, 0, sink_, 0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
LOG(WARNING) << "0 samples to read";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
void SpirGSS6450FileSignalSource::disconnect(gr::top_block_sptr top_block)
|
||||||
|
{
|
||||||
|
if (samples_ > 0)
|
||||||
|
{
|
||||||
|
top_block->disconnect(file_source_, 0, deint_, 0);
|
||||||
|
if(endian_swap_)
|
||||||
|
{
|
||||||
|
top_block->disconnect(deint_, sel_ch_ - 1, endian_ ,0);
|
||||||
|
top_block->disconnect(endian_, 0, unpack_spir_, 0);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
top_block->disconnect(deint_, sel_ch_ - 1, unpack_spir_, 0);
|
||||||
|
}
|
||||||
|
if(n_channels_ > 1)
|
||||||
|
{
|
||||||
|
unsigned int aux = 0;
|
||||||
|
for(unsigned int i = 0; i < n_channels_; i++)
|
||||||
|
{
|
||||||
|
if(i != (sel_ch_ - 1))
|
||||||
|
{
|
||||||
|
top_block->disconnect(deint_, i, null_sinks_.at(aux), 0);
|
||||||
|
aux++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (enable_throttle_control_)
|
||||||
|
{
|
||||||
|
top_block->disconnect(unpack_spir_, 0, throttle_, 0);
|
||||||
|
top_block->disconnect(throttle_, 0, valve_, 0);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
top_block->disconnect(unpack_spir_, 0, valve_, 0);
|
||||||
|
}
|
||||||
|
if(dump_)
|
||||||
|
{
|
||||||
|
top_block->disconnect(valve_, 0, sink_, 0);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
LOG(WARNING) << "Nothing to disconnect";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
gr::basic_block_sptr SpirGSS6450FileSignalSource::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 SpirGSS6450FileSignalSource::get_right_block()
|
||||||
|
{
|
||||||
|
if(samples_ > 0) { return valve_; }
|
||||||
|
else
|
||||||
|
{
|
||||||
|
if(enable_throttle_control_) { return throttle_; }
|
||||||
|
else { return unpack_spir_; }
|
||||||
|
}
|
||||||
|
}
|
||||||
@@ -0,0 +1,137 @@
|
|||||||
|
/*!
|
||||||
|
* \file spir_gss6450_file_signal_source.h
|
||||||
|
* \brief Implementation of a class that reads signals samples from a SPIR file
|
||||||
|
* and adapts it to a SignalSourceInterface.
|
||||||
|
* \author Antonio Ramos, 2017 antonio.ramos(at)cttc.es
|
||||||
|
*
|
||||||
|
* -------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010-2017 (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 free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
|
||||||
|
* -------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H_
|
||||||
|
#define GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H_
|
||||||
|
|
||||||
|
#include <string>
|
||||||
|
#include <vector>
|
||||||
|
#include <gnuradio/blocks/file_source.h>
|
||||||
|
#include <gnuradio/blocks/file_sink.h>
|
||||||
|
#include <gnuradio/blocks/throttle.h>
|
||||||
|
#include <gnuradio/blocks/packed_to_unpacked_ii.h>
|
||||||
|
#include <gnuradio/blocks/deinterleave.h>
|
||||||
|
#include <gnuradio/blocks/null_sink.h>
|
||||||
|
#include <gnuradio/blocks/endian_swap.h>
|
||||||
|
#include <gnuradio/hier_block2.h>
|
||||||
|
#include <gnuradio/msg_queue.h>
|
||||||
|
#include "gnss_block_interface.h"
|
||||||
|
#include "gnss_sdr_valve.h"
|
||||||
|
#include "unpack_spir_gss6450_samples.h"
|
||||||
|
|
||||||
|
|
||||||
|
class ConfigurationInterface;
|
||||||
|
|
||||||
|
/*!
|
||||||
|
* \brief Class that reads signals samples from a file
|
||||||
|
* and adapts it to a SignalSourceInterface
|
||||||
|
*/
|
||||||
|
class SpirGSS6450FileSignalSource: public GNSSBlockInterface
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
SpirGSS6450FileSignalSource(ConfigurationInterface* configuration, std::string role,
|
||||||
|
unsigned int in_streams, unsigned int out_streams, gr::msg_queue::sptr queue);
|
||||||
|
|
||||||
|
virtual ~SpirGSS6450FileSignalSource();
|
||||||
|
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_;
|
||||||
|
}
|
||||||
|
|
||||||
|
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 long sampling_frequency() const
|
||||||
|
{
|
||||||
|
return sampling_frequency_;
|
||||||
|
}
|
||||||
|
|
||||||
|
inline long samples() const
|
||||||
|
{
|
||||||
|
return samples_;
|
||||||
|
}
|
||||||
|
|
||||||
|
private:
|
||||||
|
unsigned long long samples_;
|
||||||
|
double sampling_frequency_;
|
||||||
|
std::string filename_;
|
||||||
|
bool repeat_;
|
||||||
|
bool dump_; //Enables dumping the gr_complex sample output
|
||||||
|
bool enable_throttle_control_;
|
||||||
|
bool endian_swap_;
|
||||||
|
std::string dump_filename_;
|
||||||
|
std::string role_;
|
||||||
|
std::string item_type_;
|
||||||
|
unsigned int in_streams_;
|
||||||
|
unsigned int out_streams_;
|
||||||
|
unsigned int adc_bits_;
|
||||||
|
unsigned int n_channels_;
|
||||||
|
unsigned int sel_ch_;
|
||||||
|
gr::blocks::file_source::sptr file_source_;
|
||||||
|
gr::blocks::deinterleave::sptr deint_;
|
||||||
|
gr::blocks::endian_swap::sptr endian_;
|
||||||
|
std::vector<gr::blocks::null_sink::sptr> null_sinks_;
|
||||||
|
unpack_spir_gss6450_samples_sptr unpack_spir_;
|
||||||
|
boost::shared_ptr<gr::block> valve_;
|
||||||
|
gr::blocks::file_sink::sptr sink_;
|
||||||
|
gr::blocks::throttle::sptr throttle_;
|
||||||
|
gr::msg_queue::sptr queue_;
|
||||||
|
size_t item_size_;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif /*GNSS_SDR_SPIR_GSS6450_FILE_SIGNAL_SOURCE_H_*/
|
||||||
@@ -23,6 +23,7 @@ set(SIGNAL_SOURCE_GR_BLOCKS_SOURCES
|
|||||||
unpack_intspir_1bit_samples.cc
|
unpack_intspir_1bit_samples.cc
|
||||||
rtl_tcp_signal_source_c.cc
|
rtl_tcp_signal_source_c.cc
|
||||||
unpack_2bit_samples.cc
|
unpack_2bit_samples.cc
|
||||||
|
unpack_spir_gss6450_samples.cc
|
||||||
)
|
)
|
||||||
|
|
||||||
include_directories(
|
include_directories(
|
||||||
|
|||||||
@@ -0,0 +1,106 @@
|
|||||||
|
/*!
|
||||||
|
* \file unpack_spir_gss6450_samples.cc
|
||||||
|
*
|
||||||
|
* \brief Unpacks SPIR int samples
|
||||||
|
* \author Antonio Ramos, antonio(at)cttc.es
|
||||||
|
* -------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010-2017 (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 free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
|
||||||
|
* -------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include "unpack_spir_gss6450_samples.h"
|
||||||
|
#include <gnuradio/io_signature.h>
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
unpack_spir_gss6450_samples_sptr make_unpack_spir_gss6450_samples(unsigned int adc_nbit)
|
||||||
|
{
|
||||||
|
return unpack_spir_gss6450_samples_sptr(new unpack_spir_gss6450_samples(adc_nbit));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
unpack_spir_gss6450_samples::unpack_spir_gss6450_samples(unsigned int adc_nbit) : gr::sync_interpolator("unpack_spir_gss6450_samples",
|
||||||
|
gr::io_signature::make(1, 1, sizeof(int)),
|
||||||
|
gr::io_signature::make(1, 1, sizeof(gr_complex)), 16 / adc_nbit)
|
||||||
|
{
|
||||||
|
adc_bits = adc_nbit;
|
||||||
|
i_data = 0;
|
||||||
|
q_data = 0;
|
||||||
|
samples_per_int = 16 / adc_bits;
|
||||||
|
if(adc_bits == 2)
|
||||||
|
{
|
||||||
|
mask_data = 0x00000003;
|
||||||
|
map_ = {0, 1, -2, -1};
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
mask_data = 0x0000000F;
|
||||||
|
map_ = {0, 1, 2, 3, 4, 5, 6, 7, -8, -7, -6, -5, -4, -3, -2, -1};
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
unpack_spir_gss6450_samples::~unpack_spir_gss6450_samples()
|
||||||
|
{}
|
||||||
|
|
||||||
|
void unpack_spir_gss6450_samples::process_sample(gr_complex& out)
|
||||||
|
{
|
||||||
|
out = gr_complex(0.5, 0.5);
|
||||||
|
compute_two_complement(i_data);
|
||||||
|
compute_two_complement(q_data);
|
||||||
|
out += gr_complex(static_cast<float>(i_data), static_cast<float>(q_data));
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int unpack_spir_gss6450_samples::work(int noutput_items,
|
||||||
|
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)
|
||||||
|
{
|
||||||
|
const int* in = reinterpret_cast<const int*>(input_items[0]);
|
||||||
|
gr_complex* out = reinterpret_cast<gr_complex*>(output_items[0]);
|
||||||
|
unsigned int n_sample = 0;
|
||||||
|
unsigned int in_counter = 0;
|
||||||
|
for(int i = 0; i < noutput_items; i++)
|
||||||
|
{
|
||||||
|
int sample_aux = in[in_counter];
|
||||||
|
int aux_i = sample_aux;
|
||||||
|
int aux_q = sample_aux;
|
||||||
|
int i_shift = adc_bits * 2 * (samples_per_int - n_sample - 1) + adc_bits;
|
||||||
|
int q_shift = adc_bits * 2 * (samples_per_int - n_sample - 1);
|
||||||
|
i_data = (aux_i >> i_shift) & mask_data;
|
||||||
|
q_data = (aux_q >> q_shift) & mask_data;
|
||||||
|
process_sample(out[samples_per_int * in_counter + samples_per_int - n_sample - 1]);
|
||||||
|
n_sample++;
|
||||||
|
if(n_sample == samples_per_int)
|
||||||
|
{
|
||||||
|
n_sample = 0;
|
||||||
|
in_counter++;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return noutput_items;
|
||||||
|
}
|
||||||
|
|
||||||
|
void unpack_spir_gss6450_samples::compute_two_complement(int& data)
|
||||||
|
{
|
||||||
|
data = map_[data];
|
||||||
|
}
|
||||||
@@ -0,0 +1,64 @@
|
|||||||
|
/*!
|
||||||
|
* \file unpack_spir_gss6450_samples.h
|
||||||
|
*
|
||||||
|
* \brief Unpacks SPIR int samples
|
||||||
|
* \author Antonio Ramos, antonio.ramos(at)cttc.es
|
||||||
|
* -------------------------------------------------------------------------
|
||||||
|
*
|
||||||
|
* Copyright (C) 2010-2017 (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 free software: you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation, either version 3 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* GNSS-SDR is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
|
||||||
|
*
|
||||||
|
* -------------------------------------------------------------------------
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef GNSS_SDR_UNPACK_SPIR_GSS6450_SAMPLES_H
|
||||||
|
#define GNSS_SDR_UNPACK_SPIR_GSS6450_SAMPLES_H
|
||||||
|
|
||||||
|
#include <gnuradio/sync_interpolator.h>
|
||||||
|
#include <vector>
|
||||||
|
|
||||||
|
class unpack_spir_gss6450_samples;
|
||||||
|
|
||||||
|
typedef boost::shared_ptr<unpack_spir_gss6450_samples> unpack_spir_gss6450_samples_sptr;
|
||||||
|
|
||||||
|
unpack_spir_gss6450_samples_sptr make_unpack_spir_gss6450_samples(unsigned int adc_nbit);
|
||||||
|
|
||||||
|
|
||||||
|
class unpack_spir_gss6450_samples: public gr::sync_interpolator
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
int work(int noutput_items,
|
||||||
|
gr_vector_const_void_star &input_items, gr_vector_void_star &output_items);
|
||||||
|
friend unpack_spir_gss6450_samples_sptr make_unpack_spir_gss6450_samples_sptr(unsigned int adc_nbit);
|
||||||
|
unpack_spir_gss6450_samples(unsigned int adc_nbit);
|
||||||
|
~unpack_spir_gss6450_samples();
|
||||||
|
|
||||||
|
private:
|
||||||
|
unsigned int adc_bits;
|
||||||
|
unsigned int samples_per_int;
|
||||||
|
void process_sample(gr_complex& out);
|
||||||
|
void compute_two_complement(int& data);
|
||||||
|
int i_data;
|
||||||
|
int q_data;
|
||||||
|
int mask_data;
|
||||||
|
std::vector<int> map_;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
||||||
@@ -48,6 +48,7 @@
|
|||||||
#include "nsr_file_signal_source.h"
|
#include "nsr_file_signal_source.h"
|
||||||
#include "two_bit_cpx_file_signal_source.h"
|
#include "two_bit_cpx_file_signal_source.h"
|
||||||
#include "spir_file_signal_source.h"
|
#include "spir_file_signal_source.h"
|
||||||
|
#include "spir_gss6450_file_signal_source.h"
|
||||||
#include "rtl_tcp_signal_source.h"
|
#include "rtl_tcp_signal_source.h"
|
||||||
#include "two_bit_packed_file_signal_source.h"
|
#include "two_bit_packed_file_signal_source.h"
|
||||||
#include "channel.h"
|
#include "channel.h"
|
||||||
@@ -864,6 +865,21 @@ std::unique_ptr<GNSSBlockInterface> GNSSBlockFactory::GetBlock(
|
|||||||
out_streams, queue));
|
out_streams, queue));
|
||||||
block = std::move(block_);
|
block = std::move(block_);
|
||||||
|
|
||||||
|
}
|
||||||
|
catch (const std::exception &e)
|
||||||
|
{
|
||||||
|
std::cout << "GNSS-SDR program ended." << std::endl;
|
||||||
|
exit(1);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else if (implementation.compare("Spir_GSS6450_File_Signal_Source") == 0)
|
||||||
|
{
|
||||||
|
try
|
||||||
|
{
|
||||||
|
std::unique_ptr<GNSSBlockInterface> block_(new SpirGSS6450FileSignalSource(configuration.get(), role, in_streams,
|
||||||
|
out_streams, queue));
|
||||||
|
block = std::move(block_);
|
||||||
|
|
||||||
}
|
}
|
||||||
catch (const std::exception &e)
|
catch (const std::exception &e)
|
||||||
{
|
{
|
||||||
|
|||||||
Reference in New Issue
Block a user