mirror of https://github.com/gnss-sdr/gnss-sdr
249 lines
9.0 KiB
C++
249 lines
9.0 KiB
C++
/*!
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* \file galileo_e1_pcps_ambiguous_acquisition_test.cc
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* \brief This class implements an acquisition test for
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* GalileoE1PcpsAmbiguousAcquisition class based on some input parameters.
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* \author Luis Esteve, 2012. luis(at)epsilon-formacion.com
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*
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2015 (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 <cstdlib>
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#include <ctime>
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#include <iostream>
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#include <gnuradio/top_block.h>
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#include <gnuradio/blocks/file_source.h>
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#include <gnuradio/analog/sig_source_waveform.h>
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#include <gnuradio/analog/sig_source_c.h>
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#include <gnuradio/msg_queue.h>
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#include <gnuradio/blocks/null_sink.h>
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#include <gtest/gtest.h>
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#include "gnss_block_factory.h"
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#include "gnss_block_interface.h"
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#include "in_memory_configuration.h"
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#include "gnss_sdr_valve.h"
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#include "gnss_signal.h"
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#include "gnss_synchro.h"
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#include "galileo_e1_pcps_ambiguous_acquisition.h"
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class GalileoE1PcpsAmbiguousAcquisitionTest: public ::testing::Test
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{
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protected:
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GalileoE1PcpsAmbiguousAcquisitionTest()
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{
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factory = std::make_shared<GNSSBlockFactory>();
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config = std::make_shared<InMemoryConfiguration>();
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item_size = sizeof(gr_complex);
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stop = false;
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message = 0;
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gnss_synchro = Gnss_Synchro();
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}
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~GalileoE1PcpsAmbiguousAcquisitionTest()
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{}
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void init();
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void start_queue();
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void wait_message();
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void stop_queue();
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gr::msg_queue::sptr queue;
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gr::top_block_sptr top_block;
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std::shared_ptr<GNSSBlockFactory> factory;
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std::shared_ptr<InMemoryConfiguration> config;
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Gnss_Synchro gnss_synchro;
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size_t item_size;
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bool stop;
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int message;
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boost::thread ch_thread;
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};
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void GalileoE1PcpsAmbiguousAcquisitionTest::init()
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{
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gnss_synchro.Channel_ID = 0;
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gnss_synchro.System = 'E';
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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("GNSS-SDR.internal_fs_hz", "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", "4");
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config->set_property("Acquisition.dump", "false");
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config->set_property("Acquisition.implementation", "Galileo_E1_PCPS_Ambiguous_Acquisition");
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config->set_property("Acquisition.threshold", "0.0001");
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config->set_property("Acquisition.doppler_max", "10000");
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config->set_property("Acquisition.doppler_step", "250");
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config->set_property("Acquisition.repeat_satellite", "false");
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config->set_property("Acquisition1.cboc", "true");
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}
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void GalileoE1PcpsAmbiguousAcquisitionTest::start_queue()
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{
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stop = false;
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ch_thread = boost::thread(&GalileoE1PcpsAmbiguousAcquisitionTest::wait_message, this);
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}
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void GalileoE1PcpsAmbiguousAcquisitionTest::wait_message()
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{
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while (!stop)
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{
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channel_internal_queue.wait_and_pop(message);
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stop_queue();
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}
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}
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void GalileoE1PcpsAmbiguousAcquisitionTest::stop_queue()
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{
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stop = true;
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}
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TEST_F(GalileoE1PcpsAmbiguousAcquisitionTest, Instantiate)
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{
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init();
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std::shared_ptr<GNSSBlockInterface> acq_ = factory->GetBlock(config, "Acquisition", "Galileo_E1_PCPS_Ambiguous_Acquisition", 1, 1, queue);
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std::shared_ptr<AcquisitionInterface> acquisition = std::dynamic_pointer_cast<AcquisitionInterface>(acq_);
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}
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TEST_F(GalileoE1PcpsAmbiguousAcquisitionTest, ConnectAndRun)
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{
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int fs_in = 4000000;
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int nsamples = 4*fs_in;
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struct timeval tv;
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long long int begin = 0;
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long long int end = 0;
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top_block = gr::make_top_block("Acquisition test");
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queue = gr::msg_queue::make(0);
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init();
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std::shared_ptr<GNSSBlockInterface> acq_ = factory->GetBlock(config, "Acquisition", "Galileo_E1_PCPS_Ambiguous_Acquisition", 1, 1, queue);
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std::shared_ptr<AcquisitionInterface> acquisition = std::dynamic_pointer_cast<AcquisitionInterface>(acq_);
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ASSERT_NO_THROW( {
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acquisition->connect(top_block);
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boost::shared_ptr<gr::analog::sig_source_c> source = gr::analog::sig_source_c::make(fs_in, gr::analog::GR_SIN_WAVE, 1000, 1, gr_complex(0));
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boost::shared_ptr<gr::block> valve = gnss_sdr_make_valve(sizeof(gr_complex), nsamples, queue);
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top_block->connect(source, 0, valve, 0);
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top_block->connect(valve, 0, acquisition->get_left_block(), 0);
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}) << "Failure connecting the blocks of acquisition test." << std::endl;
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EXPECT_NO_THROW( {
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gettimeofday(&tv, NULL);
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begin = tv.tv_sec*1000000 + tv.tv_usec;
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top_block->run(); // Start threads and wait
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gettimeofday(&tv, NULL);
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end = tv.tv_sec*1000000 + tv.tv_usec;
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}) << "Failure running the top_block." << std::endl;
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std::cout << "Processed " << nsamples << " samples in " << (end-begin) << " microseconds" << std::endl;
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}
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TEST_F(GalileoE1PcpsAmbiguousAcquisitionTest, ValidationOfResults)
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{
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struct timeval tv;
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long long int begin = 0;
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long long int end = 0;
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double expected_delay_samples = 2920; //18250;
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double expected_doppler_hz = -632;
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init();
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top_block = gr::make_top_block("Acquisition test");
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queue = gr::msg_queue::make(0);
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std::shared_ptr<GNSSBlockInterface> acq_ = factory->GetBlock(config, "Acquisition", "Galileo_E1_PCPS_Ambiguous_Acquisition", 1, 1, queue);
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std::shared_ptr<GalileoE1PcpsAmbiguousAcquisition> acquisition = std::dynamic_pointer_cast<GalileoE1PcpsAmbiguousAcquisition>(acq_);
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ASSERT_NO_THROW( {
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acquisition->set_channel(gnss_synchro.Channel_ID);
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}) << "Failure setting channel." << std::endl;
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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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ASSERT_NO_THROW( {
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acquisition->set_threshold(config->property("Acquisition.threshold", 1e-9));
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}) << "Failure setting threshold." << std::endl;
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ASSERT_NO_THROW( {
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acquisition->set_doppler_max(config->property("Acquisition.doppler_max", 10000));
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}) << "Failure setting doppler_max." << std::endl;
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ASSERT_NO_THROW( {
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acquisition->set_doppler_step(config->property("Acquisition.doppler_step", 250));
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}) << "Failure setting doppler_step." << std::endl;
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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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ASSERT_NO_THROW( {
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std::string path = std::string(TEST_PATH);
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std::string file = path + "signal_samples/Galileo_E1_ID_1_Fs_4Msps_8ms.dat";
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const char * file_name = file.c_str();
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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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}) << "Failure connecting the blocks of acquisition test." << std::endl;
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ASSERT_NO_THROW( {
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start_queue();
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}) << "Failure while starting the queue" << std::endl;
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acquisition->init();
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acquisition->reset();
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acquisition->set_state(1);
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EXPECT_NO_THROW( {
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gettimeofday(&tv, NULL);
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begin = tv.tv_sec * 1000000 + tv.tv_usec;
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top_block->run(); // Start threads and wait
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gettimeofday(&tv, NULL);
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end = tv.tv_sec * 1000000 + tv.tv_usec;
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}) << "Failure running the top_block." << std::endl;
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stop_queue();
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unsigned long int nsamples = gnss_synchro.Acq_samplestamp_samples;
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std::cout << "Acquired " << nsamples << " samples in " << (end - begin) << " microseconds" << std::endl;
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EXPECT_EQ(1, message) << "Acquisition failure. Expected message: 1=ACQ SUCCESS.";
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std::cout << "Delay: " << gnss_synchro.Acq_delay_samples << std::endl;
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std::cout << "Doppler: " << gnss_synchro.Acq_doppler_hz << std::endl;
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double delay_error_samples = std::abs(expected_delay_samples - gnss_synchro.Acq_delay_samples);
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float delay_error_chips = (float)(delay_error_samples * 1023 / 4000000);
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double doppler_error_hz = std::abs(expected_doppler_hz - gnss_synchro.Acq_doppler_hz);
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EXPECT_LE(doppler_error_hz, 166) << "Doppler error exceeds the expected value: 166 Hz = 2/(3*integration period)";
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EXPECT_LT(delay_error_chips, 0.175) << "Delay error exceeds the expected value: 0.175 chips";
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ch_thread.join();
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}
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