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Code Issues Releases Wiki Activity

Implement FIR filter configuration

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This commit is contained in:
Carles Fernandez
2019-10-09 20:50:06 +02:00
parent c081c2ea57
commit e4a39188f5
8 changed files with 155 additions and 34 deletions
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2
CMakeLists.txt
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@@ -2577,7 +2577,7 @@ add_feature_info(ENABLE_UHD ENABLE_UHD "Enables UHD_Signal_Source for using RF f
add_feature_info(ENABLE_OSMOSDR ENABLE_OSMOSDR "Enables Osmosdr_Signal_Source and RtlTcp_Signal_Source for using RF front-ends compatible with the OsmoSDR driver. Requires gr-osmosdr.")
add_feature_info(ENABLE_FMCOMMS2 ENABLE_FMCOMMS2 "Enables Fmcomms2_Signal_Source for FMCOMMS2/3/4 devices. Requires gr-iio.")
add_feature_info(ENABLE_PLUTOSDR ENABLE_PLUTOSDR "Enables Plutosdr_Signal_Source for using ADALM-PLUTO boards. Requires gr-iio.")
add_feature_info(ENABLE_AD9361 ENABLE_AD9361 "Enables Ad9361_Fpga_Signal_Source for devices with the AD9361 chipset. Requires libiio.")
add_feature_info(ENABLE_AD9361 ENABLE_AD9361 "Enables Ad9361_Fpga_Signal_Source for devices with the AD9361 chipset. Requires libiio and libad9361.")
add_feature_info(ENABLE_RAW_UDP ENABLE_RAW_UDP "Enables Custom_UDP_Signal_Source for custom UDP packet sample source. Requires libpcap.")
add_feature_info(ENABLE_FLEXIBAND ENABLE_FLEXIBAND "Enables Flexiband_Signal_Source for using Teleorbit's Flexiband RF front-end. Requires gr-teleorbit.")
add_feature_info(ENABLE_GN3S ENABLE_GN3S "Enables Gn3s_Signal_Source for using the GN3S v2 dongle. Requires gr-gn3s.")

6
cmake/Modules/FindLIBAD9361.cmake
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@@ -74,7 +74,7 @@ find_library(
/usr/local/lib
/usr/local/lib64
/opt/local/lib
/Library/Frameworks/iio.framework/
/Library/Frameworks/ad9361.framework
${CMAKE_INSTALL_PREFIX}/lib
${CMAKE_INSTALL_PREFIX}/lib64
${LIBAD9361_ROOT}/lib
@@ -99,11 +99,11 @@ endif()
if(LIBAD9361_FOUND AND LIBAD9361_VERSION)
set_package_properties(LIBAD9361 PROPERTIES
DESCRIPTION "A library for interfacing with AD936X transceivers (found: v${LIBAD9361_VERSION})"
DESCRIPTION "A library for interfacing with AD936X RF transceivers (found: v${LIBAD9361_VERSION})"
)
else()
set_package_properties(LIBAD9361 PROPERTIES
DESCRIPTION "A library for interfacing with AD936X transceivers"
DESCRIPTION "A library for interfacing with AD936X RF transceivers"
)
endif()

33
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.cc
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@@ -279,7 +279,7 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
const std::string &role, unsigned int in_stream, unsigned int out_stream,
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue) : role_(role), in_stream_(in_stream), out_stream_(out_stream), queue_(std::move(queue))
{
std::string default_gain_mode("slow attack");
std::string default_gain_mode("slow_attack");
double default_tx_attenuation_db = -10.0;
double default_manual_gain_rx1 = 64.0;
double default_manual_gain_rx2 = 64.0;
@@ -297,8 +297,18 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
rf_gain_rx2_ = configuration->property(role + ".gain_rx2", default_manual_gain_rx2);
rf_port_select_ = configuration->property(role + ".rf_port_select", default_rf_port_select);
filter_file_ = configuration->property(role + ".filter_file", std::string(""));
filter_filename_ = configuration->property(role + ".filter_filename", filter_file_);
filter_auto_ = configuration->property(role + ".filter_auto", false);
if (filter_auto_)
{
filter_source_ = configuration->property(role + ".filter_source", std::string("Auto"));
}
else
{
filter_source_ = configuration->property(role + ".filter_source", std::string("Off"));
}
Fpass_ = configuration->property(role + ".Fpass", 0.0);
Fstop_ = configuration->property(role + ".Fstop", 0.0);
enable_dds_lo_ = configuration->property(role + ".enable_dds_lo", false);
freq_dds_tx_hz_ = configuration->property(role + ".freq_dds_tx_hz", 1000);
freq_rf_tx_hz_ = configuration->property(role + ".freq_rf_tx_hz", GPS_L1_FREQ_HZ - GPS_L2_FREQ_HZ - freq_dds_tx_hz_);
@@ -410,6 +420,19 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
}
}
if ((filter_source_ != "Off") and (filter_source_ != "Auto") and (filter_source_ != "File") and (filter_source_ != "Design"))
{
std::cout << "Configuration parameter filter_source should take one of these values:" << std::endl;
std::cout << " Off: Disable filter" << std::endl;
std::cout << " Auto: Use auto-generated filters" << std::endl;
std::cout << " File: User-provided filter in filter_filename parameter" << std::endl;
std::cout << " Design: Create filter from Fpass, Fstop, sampling_frequency and bandwidth parameters" << std::endl;
std::cout << "Error: provided value filter_source=" << filter_source_ << " is not among valid values" << std::endl;
std::cout << " This parameter has been set to its default value filter_source=Off" << std::endl;
filter_source_ = std::string("Off");
LOG(WARNING) << "Invalid configuration value for filter_source parameter. Set to filter_source=Off";
}
if (bandwidth_ < 200000 or bandwidth_ > 56000000)
{
std::cout << "Configuration parameter bandwidth should take values between 200000 and 56000000 Hz" << std::endl;
@@ -432,7 +455,11 @@ Ad9361FpgaSignalSource::Ad9361FpgaSignalSource(ConfigurationInterface *configura
rf_gain_rx2_,
quadrature_,
rf_dc_,
bb_dc_);
bb_dc_,
filter_source_,
filter_filename_,
Fpass_,
Fstop_);
}
catch (const std::runtime_error &e)
{

4
src/algorithms/signal_source/adapters/ad9361_fpga_signal_source.h
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@@ -93,6 +93,10 @@ private:
std::string rf_port_select_;
std::string filter_file_;
bool filter_auto_;
std::string filter_source_;
std::string filter_filename_;
float Fpass_;
float Fstop_;
// DDS configuration for LO generation for external mixer
bool enable_dds_lo_;

2
src/algorithms/signal_source/adapters/fmcomms2_signal_source.cc
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@@ -48,7 +48,7 @@ Fmcomms2SignalSource::Fmcomms2SignalSource(ConfigurationInterface* configuration
{
std::string default_item_type = "gr_complex";
std::string default_dump_file = "./data/signal_source.dat";
std::string default_gain_mode("slow attack");
std::string default_gain_mode("slow_attack");
double default_tx_attenuation_db = -10.0;
uri_ = configuration->property(role + ".device_address", std::string("192.168.2.1"));
freq_ = configuration->property(role + ".freq", GPS_L1_FREQ_HZ);

2
src/algorithms/signal_source/adapters/plutosdr_signal_source.cc
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@@ -43,7 +43,7 @@ PlutosdrSignalSource::PlutosdrSignalSource(ConfigurationInterface* configuration
{
std::string default_item_type = "gr_complex";
std::string default_dump_file = "./data/signal_source.dat";
std::string default_gain_mode("slow attack");
std::string default_gain_mode("slow_attack");
uri_ = configuration->property(role + ".device_address", std::string("192.168.2.1"));
freq_ = configuration->property(role + ".freq", GPS_L1_FREQ_HZ);
sample_rate_ = configuration->property(role + ".sampling_frequency", 3000000);

134
src/algorithms/signal_source/libs/ad9361_manager.cc
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@@ -188,23 +188,21 @@ bool config_ad9361_rx_local(uint64_t bandwidth_,
double rf_gain_rx2_,
bool quadrature_,
bool rfdc_,
bool bbdc_)
bool bbdc_,
std::string filter_source_,
std::string filter_filename_,
float Fpass_,
float Fstop_)
{
// RX stream config
// Stream configurations
struct stream_cfg rxcfg;
rxcfg.bw_hz = bandwidth_;
rxcfg.fs_hz = sample_rate_;
rxcfg.lo_hz = freq_;
rxcfg.rfport = rf_port_select_.c_str();
std::cout << "AD9361 Acquiring IIO LOCAL context\n";
struct iio_context *ctx;
// Streaming devices
struct iio_device *rx;
struct iio_channel *rx_chan1;
struct iio_channel *rx_chan2;
int ret;
ctx = iio_create_default_context();
if (!ctx)
@@ -219,21 +217,16 @@ bool config_ad9361_rx_local(uint64_t bandwidth_,
throw std::runtime_error("AD9361 IIO No devices");
}
std::cout << "* Acquiring AD9361 streaming devices\n";
struct iio_device *ad9361_phy;
ad9361_phy = iio_context_find_device(ctx, "ad9361-phy");
std::cout << "* Acquiring AD9361 streaming devices\n";
if (!get_ad9361_stream_dev(ctx, RX, &rx))
{
std::cout << "No rx dev found\n";
throw std::runtime_error("AD9361 IIO No rx dev found");
};
std::cout << "* Configuring AD9361 for streaming\n";
if (!cfg_ad9361_streaming_ch(ctx, &rxcfg, RX, 0))
{
std::cout << "RX port 0 not found\n";
throw std::runtime_error("AD9361 IIO RX port 0 not found");
}
std::cout << "* Initializing AD9361 IIO streaming channels\n";
if (!get_ad9361_stream_ch(ctx, RX, rx, 0, &rx_chan1))
{
@@ -247,13 +240,106 @@ bool config_ad9361_rx_local(uint64_t bandwidth_,
throw std::runtime_error("RX channel 2 not found");
}
if (filter_source_ == "Off")
{
struct stream_cfg rxcfg;
rxcfg.bw_hz = bandwidth_;
rxcfg.fs_hz = sample_rate_;
rxcfg.lo_hz = freq_;
rxcfg.rfport = rf_port_select_.c_str();
if (!cfg_ad9361_streaming_ch(ctx, &rxcfg, RX, 0))
{
std::cout << "RX port 0 not found\n";
throw std::runtime_error("AD9361 IIO RX port 0 not found");
}
}
else if (filter_source_ == "Auto")
{
ret = ad9361_set_bb_rate(ad9361_phy, sample_rate_);
if (ret)
{
throw std::runtime_error("Unable to set BB rate");
// set bw
//params.push_back("in_voltage_rf_bandwidth=" + boost::to_string(bandwidth));
}
//wr_ch_str(rx_chan1, "rf_port_select", rf_port_select_.c_str());
ret = iio_device_attr_write(ad9361_phy, "in_voltage0_rf_port_select", rf_port_select_.c_str());
if (ret)
{
throw std::runtime_error("Unable to set rf_port_select");
}
wr_ch_lli(rx_chan1, "rf_bandwidth", bandwidth_);
if (!get_lo_chan(ctx, RX, &rx_chan1))
{
return false;
}
wr_ch_lli(rx_chan1, "frequency", freq_);
}
else if (filter_source_ == "File")
{
try
{
if (!load_fir_filter(filter_filename_, ad9361_phy))
{
throw std::runtime_error("Unable to load filter file");
}
}
catch (const std::runtime_error &e)
{
std::cout << "Exception cached when configuring the RX FIR filter: " << e.what() << std::endl;
}
ret = iio_device_attr_write(ad9361_phy, "in_voltage0_rf_port_select", rf_port_select_.c_str());
if (ret)
{
throw std::runtime_error("Unable to set rf_port_select");
}
wr_ch_lli(rx_chan1, "rf_bandwidth", bandwidth_);
if (!get_lo_chan(ctx, RX, &rx_chan1))
{
return false;
}
wr_ch_lli(rx_chan1, "frequency", freq_);
}
else if (filter_source_ == "Design")
{
ret = ad9361_set_bb_rate_custom_filter_manual(
ad9361_phy, sample_rate_, static_cast<uint64_t>(Fpass_), static_cast<uint64_t>(Fstop_), bandwidth_, bandwidth_);
if (ret)
{
throw std::runtime_error("Unable to set BB rate");
}
ret = iio_device_attr_write(ad9361_phy, "in_voltage0_rf_port_select", rf_port_select_.c_str());
if (ret)
{
throw std::runtime_error("Unable to set rf_port_select");
}
wr_ch_lli(rx_chan1, "rf_bandwidth", bandwidth_);
if (!get_lo_chan(ctx, RX, &rx_chan1))
{
return false;
}
wr_ch_lli(rx_chan1, "frequency", freq_);
}
else
{
throw std::runtime_error("Unknown filter configuration");
}
// Filters can only be disabled after the sample rate has been set
if (filter_source_ == "Off")
{
ret = ad9361_set_trx_fir_enable(ad9361_phy, false);
if (ret)
{
throw std::runtime_error("Unable to disable filters");
}
}
std::cout << "* Enabling IIO streaming channels\n";
iio_channel_enable(rx_chan1);
iio_channel_enable(rx_chan2);
struct iio_device *ad9361_phy;
ad9361_phy = iio_context_find_device(ctx, "ad9361-phy");
int ret;
ret = iio_device_attr_write(ad9361_phy, "trx_rate_governor", "nominal");
if (ret < 0)
{
@@ -322,13 +408,13 @@ bool config_ad9361_rx_remote(const std::string &remote_host,
double rf_gain_rx2_,
bool quadrature_,
bool rfdc_,
bool bbdc_)
bool bbdc_,
std::string filter_source_,
std::string filter_filename_,
float Fpass_,
float Fstop_)
{
std::string filter_source_("Off");
float Fpass_ = 0.0, Fstop_ = 0.0;
std::string filter_filename_;
// RX stream config
std::cout << "AD9361 Acquiring IIO REMOTE context in host " << remote_host << std::endl;
struct iio_context *ctx;
// Streaming devices

6
src/algorithms/signal_source/libs/ad9361_manager.h
View File

@@ -92,7 +92,11 @@ bool config_ad9361_rx_local(uint64_t bandwidth_,
double rf_gain_rx2_,
bool quadrature_,
bool rfdc_,
bool bbdc_);
bool bbdc_,
std::string filter_source_,
std::string filter_filename_,
float Fpass_,
float Fstop_);
bool config_ad9361_rx_remote(const std::string &remote_host,
uint64_t bandwidth_,