mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-12-14 04:00:34 +00:00
Add acquisition grid plot
This commit is contained in:
Carles Fernandez
parent
498dc22940
commit
41b5365244
@ -510,6 +510,10 @@ public:
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Gnuplot& plot_xy_err(const X &x, const Y &y, const E &dy,
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const std::string &title = "");
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template<typename X, typename Y, typename E>
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Gnuplot& plot_grid3d(const X &x, const Y &y, const E &mag,
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const std::string &title = "");
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/// plot x,y,z triples: x y z
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/// from file
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Gnuplot& plotfile_xyz(const std::string &filename,
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@ -804,6 +808,63 @@ Gnuplot& Gnuplot::plot_xy_err(const X &x,
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}
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//------------------------------------------------------------------------------
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//
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// Plots a 3d grid
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//
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template<typename X, typename Y, typename E>
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Gnuplot& Gnuplot::plot_grid3d(const X &x,
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const Y &y,
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const E &mag,
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const std::string &title)
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{
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if (x.size() == 0 || y.size() == 0 )
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{
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throw GnuplotException("std::vectors too small");
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return *this;
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}
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std::ofstream tmp;
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std::string name = create_tmpfile(tmp);
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if (name == "")
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return *this;
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//
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// write the data to file
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//
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for (unsigned int i = 0; i < x.size(); i++)
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{
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for (unsigned int k = 0; k < y.size(); k++)
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{
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tmp << static_cast<float>(x.at(i)) << " " << static_cast<float>(y.at(k)) << " " << mag.at(i).at(k) << std::endl;
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}
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tmp.flush();
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}
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tmp.close();
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std::ostringstream cmdstr;
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cmdstr << "set ticslevel 0\n";
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cmdstr << "set hidden3d\n";
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cmdstr << "unset colorbox\n";
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cmdstr << "set border 5\n";
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cmdstr << "unset ztics\n";
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cmdstr << " splot \"" << name << "\" u 1:2:3";
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if (title == "")
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cmdstr << " notitle with " << pstyle << " palette";
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else
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cmdstr << " title \"" << title << "\" with " << pstyle << " palette";
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cmdstr << "\n";
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//
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// Do the actual plot
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//
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cmd(cmdstr.str());
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return *this;
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}
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//------------------------------------------------------------------------------
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//
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// Plots a 3d graph from a list of doubles: x y z
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@ -34,6 +34,7 @@
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#include <chrono>
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#include <iostream>
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#include <boost/filesystem.hpp>
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#include <boost/make_shared.hpp>
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#include <gnuradio/top_block.h>
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#include <gnuradio/blocks/file_source.h>
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@ -47,8 +48,14 @@
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#include "in_memory_configuration.h"
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#include "gnss_sdr_valve.h"
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#include "gnss_synchro.h"
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#include "gnuplot_i.h"
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#include "test_flags.h"
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#include "acquisition_dump_reader.h"
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#include "gps_l1_ca_pcps_acquisition.h"
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DEFINE_bool(plot_acq_grid, false, "Plots results of GpsL1CaPcpsAcquisitionTest with gnuplot");
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// ######## GNURADIO BLOCK MESSAGE RECEVER #########
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class GpsL1CaPcpsAcquisitionTest_msg_rx;
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@ -120,6 +127,7 @@ protected:
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{}
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void init();
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void plot_grid();
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gr::top_block_sptr top_block;
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std::shared_ptr<GNSSBlockFactory> factory;
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@ -136,24 +144,88 @@ void GpsL1CaPcpsAcquisitionTest::init()
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std::string signal = "1C";
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signal.copy(gnss_synchro.Signal, 2, 0);
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gnss_synchro.PRN = 1;
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config->set_property("Acquisition_1C.implementation", "GPS_L1_CA_PCPS_Acquisition");
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config->set_property("GNSS-SDR.internal_fs_sps", "4000000");
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config->set_property("Acquisition.item_type", "gr_complex");
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config->set_property("Acquisition.if", "0");
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config->set_property("Acquisition.coherent_integration_time_ms", "1");
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config->set_property("Acquisition.dump", "false");
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config->set_property("Acquisition.implementation", "GPS_L1_CA_PCPS_Acquisition");
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config->set_property("Acquisition.threshold", "0.00001");
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config->set_property("Acquisition.doppler_max", "5000");
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config->set_property("Acquisition.doppler_step", "500");
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config->set_property("Acquisition.repeat_satellite", "false");
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//config->set_property("Acquisition.pfa", "0.0");
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config->set_property("Acquisition_1C.item_type", "gr_complex");
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config->set_property("Acquisition_1C.if", "0");
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config->set_property("Acquisition_1C.coherent_integration_time_ms", "1");
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if(FLAGS_plot_acq_grid == true)
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{
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config->set_property("Acquisition_1C.dump", "true");
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}
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else
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{
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config->set_property("Acquisition_1C.dump", "false");
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}
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config->set_property("Acquisition_1C.threshold", "0.00001");
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config->set_property("Acquisition_1C.doppler_max", "5000");
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config->set_property("Acquisition_1C.doppler_step", "500");
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config->set_property("Acquisition_1C.repeat_satellite", "false");
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//config->set_property("Acquisition_1C.pfa", "0.0");
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}
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void GpsL1CaPcpsAcquisitionTest::plot_grid()
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{
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//load the measured values
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std::string basename = "./data/acquisition_G_1C";
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unsigned int sat = static_cast<unsigned int>(gnss_synchro.PRN);
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unsigned int doppler_max = 5000; // !!!
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unsigned int doppler_step = 100; // !!
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unsigned int samples_per_code = static_cast<unsigned int>(round(4000000 / (GPS_L1_CA_CODE_RATE_HZ / GPS_L1_CA_CODE_LENGTH_CHIPS))); // !!
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acquisition_dump_reader acq_dump(basename, sat, doppler_max, doppler_step, samples_per_code);
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if(!acq_dump.read_binary_acq()) std::cout << "Error reading files" << std::endl;
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std::vector<int> doppler = acq_dump.doppler;
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std::vector<unsigned int> samples = acq_dump.samples;
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std::vector<std::vector<float> > mag = acq_dump.mag;
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const std::string gnuplot_executable(FLAGS_gnuplot_executable);
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if(gnuplot_executable.empty())
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{
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std::cout << "WARNING: Although the flag plot_acq_grid has been set to TRUE," << std::endl;
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std::cout << "gnuplot has not been found in your system." << std::endl;
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std::cout << "Test results will not be plotted." << std::endl;
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}
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else
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{
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std::cout << "Plotting the acquisition grid..." << std::endl;
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try
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{
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boost::filesystem::path p(gnuplot_executable);
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boost::filesystem::path dir = p.parent_path();
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std::string gnuplot_path = dir.native();
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Gnuplot::set_GNUPlotPath(gnuplot_path);
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Gnuplot g1("lines");
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g1.set_title("GPS L1 C/A signal acquisition for satellite PRN #" + std::to_string(gnss_synchro.PRN));
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g1.set_xlabel("Doppler [Hz]");
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g1.set_ylabel("Sample");
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//g1.cmd("set view 60, 105, 1, 1");
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g1.plot_grid3d(doppler, samples, mag);
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g1.savetops("GPS_L1_acq_grid");
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g1.savetopdf("GPS_L1_acq_grid");
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g1.showonscreen();
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}
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catch (const GnuplotException & ge)
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{
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std::cout << ge.what() << std::endl;
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}
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}
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std::string data_str = "./data";
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if (boost::filesystem::exists(data_str))
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{
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boost::filesystem::remove_all(data_str);
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}
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}
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TEST_F(GpsL1CaPcpsAcquisitionTest, Instantiate)
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{
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init();
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boost::shared_ptr<GpsL1CaPcpsAcquisition> acquisition = boost::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition", 1, 1);
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boost::shared_ptr<GpsL1CaPcpsAcquisition> acquisition = boost::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition_1C", 1, 1);
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}
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@ -167,7 +239,7 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ConnectAndRun)
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top_block = gr::make_top_block("Acquisition test");
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init();
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boost::shared_ptr<GpsL1CaPcpsAcquisition> acquisition = boost::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition", 1, 1);
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boost::shared_ptr<GpsL1CaPcpsAcquisition> acquisition = boost::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition_1C", 1, 1);
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boost::shared_ptr<GpsL1CaPcpsAcquisitionTest_msg_rx> msg_rx = GpsL1CaPcpsAcquisitionTest_msg_rx_make();
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ASSERT_NO_THROW( {
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@ -178,14 +250,14 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ConnectAndRun)
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top_block->connect(valve, 0, acquisition->get_left_block(), 0);
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top_block->msg_connect(acquisition->get_right_block(), pmt::mp("events"), msg_rx, pmt::mp("events"));
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}) << "Failure connecting the blocks of acquisition test." << std::endl;
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}) << "Failure connecting the blocks of acquisition test.";
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EXPECT_NO_THROW( {
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start = std::chrono::system_clock::now();
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top_block->run(); // Start threads and wait
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end = std::chrono::system_clock::now();
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elapsed_seconds = end - start;
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}) << "Failure running the top_block." << std::endl;
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}) << "Failure running the top_block.";
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std::cout << "Processed " << nsamples << " samples in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
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}
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@ -194,7 +266,7 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ConnectAndRun)
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TEST_F(GpsL1CaPcpsAcquisitionTest, ValidationOfResults)
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{
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std::chrono::time_point<std::chrono::system_clock> start, end;
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std::chrono::duration<double> elapsed_seconds(0);
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std::chrono::duration<double> elapsed_seconds(0.0);
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top_block = gr::make_top_block("Acquisition test");
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double expected_delay_samples = 524;
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@ -202,32 +274,42 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ValidationOfResults)
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init();
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std::shared_ptr<GpsL1CaPcpsAcquisition> acquisition = std::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition", 1, 1);
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if(FLAGS_plot_acq_grid == true)
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{
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std::string data_str = "./data";
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if (boost::filesystem::exists(data_str))
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{
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boost::filesystem::remove_all(data_str);
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}
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boost::filesystem::create_directory(data_str);
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}
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std::shared_ptr<GpsL1CaPcpsAcquisition> acquisition = std::make_shared<GpsL1CaPcpsAcquisition>(config.get(), "Acquisition_1C", 1, 1);
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boost::shared_ptr<GpsL1CaPcpsAcquisitionTest_msg_rx> msg_rx = GpsL1CaPcpsAcquisitionTest_msg_rx_make();
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ASSERT_NO_THROW( {
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acquisition->set_channel(1);
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}) << "Failure setting channel." << std::endl;
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}) << "Failure setting channel.";
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ASSERT_NO_THROW( {
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acquisition->set_gnss_synchro(&gnss_synchro);
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}) << "Failure setting gnss_synchro." << std::endl;
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}) << "Failure setting gnss_synchro.";
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ASSERT_NO_THROW( {
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acquisition->set_threshold(0.001);
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}) << "Failure setting threshold." << std::endl;
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}) << "Failure setting threshold.";
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ASSERT_NO_THROW( {
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acquisition->set_doppler_max(5000);
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}) << "Failure setting doppler_max." << std::endl;
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}) << "Failure setting doppler_max.";
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ASSERT_NO_THROW( {
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acquisition->set_doppler_step(100);
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}) << "Failure setting doppler_step." << std::endl;
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}) << "Failure setting doppler_step.";
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ASSERT_NO_THROW( {
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acquisition->connect(top_block);
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}) << "Failure connecting acquisition to the top_block." << std::endl;
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}) << "Failure connecting acquisition to the top_block.";
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ASSERT_NO_THROW( {
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std::string path = std::string(TEST_PATH);
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@ -236,7 +318,7 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ValidationOfResults)
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gr::blocks::file_source::sptr file_source = gr::blocks::file_source::make(sizeof(gr_complex), file_name, false);
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top_block->connect(file_source, 0, acquisition->get_left_block(), 0);
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top_block->msg_connect(acquisition->get_right_block(), pmt::mp("events"), msg_rx, pmt::mp("events"));
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}) << "Failure connecting the blocks of acquisition test." << std::endl;
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}) << "Failure connecting the blocks of acquisition test.";
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acquisition->set_local_code();
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acquisition->set_state(1); // Ensure that acquisition starts at the first sample
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@ -247,7 +329,7 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ValidationOfResults)
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top_block->run(); // Start threads and wait
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end = std::chrono::system_clock::now();
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elapsed_seconds = end - start;
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}) << "Failure running the top_block." << std::endl;
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}) << "Failure running the top_block.";
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unsigned long int nsamples = gnss_synchro.Acq_samplestamp_samples;
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std::cout << "Acquired " << nsamples << " samples in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
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@ -259,4 +341,9 @@ TEST_F(GpsL1CaPcpsAcquisitionTest, ValidationOfResults)
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EXPECT_LE(doppler_error_hz, 666) << "Doppler error exceeds the expected value: 666 Hz = 2/(3*integration period)";
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EXPECT_LT(delay_error_chips, 0.5) << "Delay error exceeds the expected value: 0.5 chips";
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if(FLAGS_plot_acq_grid == true)
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{
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plot_grid();
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}
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}
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@ -18,6 +18,7 @@
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set(SIGNAL_PROCESSING_TESTING_LIB_SOURCES
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acquisition_dump_reader.cc
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tracking_dump_reader.cc
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tlm_dump_reader.cc
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observables_dump_reader.cc
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@ -0,0 +1,109 @@
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/*!
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* \file acquisition_dump_reader.cc
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* \brief Helper file for unit testing
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* \author Javier Arribas, 2017. jarribas(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
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*
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* This file is part of GNSS-SDR.
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*
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* GNSS-SDR is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GNSS-SDR is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNSS-SDR. If not, see <http://www.gnu.org/licenses/>.
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*
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* -------------------------------------------------------------------------
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*/
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#include <complex>
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#include "acquisition_dump_reader.h"
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bool acquisition_dump_reader::read_binary_acq()
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{
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std::complex<float>* aux = new std::complex<float>[1];
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for(int i = 0; i < d_num_doppler_bins; i++)
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{
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try
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{
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std::ifstream ifs;
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ifs.exceptions( std::ifstream::failbit | std::ifstream::badbit );
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ifs.open(d_dump_filenames.at(i).c_str(), std::ios::in | std::ios::binary);
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d_dump_files.at(i).swap(ifs);
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if (d_dump_files.at(i).is_open())
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{
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for(int k = 0; k < d_samples_per_code; k++)
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{
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d_dump_files.at(i).read(reinterpret_cast<char *>(&aux[0]), sizeof(std::complex<float>));
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mag.at(i).at(k) = std::abs(*aux) / std::pow(d_samples_per_code, 2);
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}
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}
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else
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{
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std::cout << "File " << d_dump_filenames.at(i).c_str() << " not found." << std::endl;
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delete[] aux;
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return false;
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}
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d_dump_files.at(i).close();
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}
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catch (const std::ifstream::failure &e)
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{
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std::cout << e.what() << std::endl;
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delete[] aux;
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return false;
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}
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}
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delete[] aux;
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return true;
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}
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acquisition_dump_reader::acquisition_dump_reader(std::string & basename, unsigned int sat, unsigned int doppler_max, unsigned int doppler_step, unsigned int samples_per_code)
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{
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d_basename = basename;
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d_sat = sat;
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d_doppler_max = doppler_max;
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d_doppler_step = doppler_step;
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d_samples_per_code = samples_per_code;
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d_num_doppler_bins = static_cast<unsigned int>(ceil( static_cast<double>(static_cast<int>(d_doppler_max) - static_cast<int>(-d_doppler_max)) / static_cast<double>(d_doppler_step)));
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std::vector<std::vector<float> > mag_aux(d_num_doppler_bins, std::vector<float>(d_samples_per_code));
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mag = mag_aux;
|
||||
for (unsigned int doppler_index = 0; doppler_index < d_num_doppler_bins; doppler_index++)
|
||||
{
|
||||
doppler.push_back(-static_cast<int>(d_doppler_max) + d_doppler_step * doppler_index);
|
||||
d_dump_filenames.push_back(d_basename + "_sat_" + std::to_string(d_sat) + "_doppler_" + std::to_string(doppler.at(doppler_index)) + ".dat");
|
||||
}
|
||||
for (unsigned int k = 0; k < d_samples_per_code; k++)
|
||||
{
|
||||
samples.push_back(k);
|
||||
}
|
||||
for(int i = 0; i < d_num_doppler_bins; i++)
|
||||
{
|
||||
std::ifstream is;
|
||||
d_dump_files.push_back(std::move(is));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
acquisition_dump_reader::~acquisition_dump_reader()
|
||||
{
|
||||
for(int i = 0; i < d_num_doppler_bins; i++)
|
||||
{
|
||||
if (d_dump_files.at(i).is_open() == true)
|
||||
{
|
||||
d_dump_files.at(i).close();
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,61 @@
|
||||
/*!
|
||||
* \file acquisition_dump_reader.h
|
||||
* \brief Helper file for unit testing
|
||||
* \author Javier Arribas, 2017. jarribas(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 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_ACQUISITION_DUMP_READER_H
|
||||
#define GNSS_SDR_ACQUISITION_DUMP_READER_H
|
||||
|
||||
#include <iostream>
|
||||
#include <fstream>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
|
||||
class acquisition_dump_reader
|
||||
{
|
||||
public:
|
||||
acquisition_dump_reader(std::string & basename, unsigned int sat, unsigned int doppler_max, unsigned int doppler_step, unsigned int samples_per_code);
|
||||
~acquisition_dump_reader();
|
||||
bool read_binary_acq();
|
||||
|
||||
std::vector<int> doppler;
|
||||
std::vector<unsigned int> samples;
|
||||
std::vector<std::vector<float> > mag;
|
||||
|
||||
private:
|
||||
std::string d_basename;
|
||||
unsigned int d_sat;
|
||||
unsigned int d_doppler_max;
|
||||
unsigned int d_doppler_step;
|
||||
unsigned int d_samples_per_code;
|
||||
unsigned int d_num_doppler_bins;
|
||||
std::vector<std::string> d_dump_filenames;
|
||||
std::vector<std::ifstream> d_dump_files;
|
||||
};
|
||||
|
||||
#endif // GNSS_SDR_ACQUISITION_DUMP_READER_H
|
||||
Loading…
Reference in New Issue
Block a user