mirror of https://github.com/gnss-sdr/gnss-sdr
175 lines
6.5 KiB
C++
175 lines
6.5 KiB
C++
/*!
|
|
* \file notch_filter_test.cc
|
|
* \brief Implements Unit Test for the NotchFilter class.
|
|
* \author Antonio Ramos, 2017. antonio.ramos(at)cttc.es
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*
|
|
* Copyright (C) 2010-2018 (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 <https://www.gnu.org/licenses/>.
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include <gflags/gflags.h>
|
|
#include <gnuradio/analog/sig_source_waveform.h>
|
|
#include <gnuradio/top_block.h>
|
|
#include <chrono>
|
|
#include <complex>
|
|
#include <cstdint>
|
|
#ifdef GR_GREATER_38
|
|
#include <gnuradio/analog/sig_source.h>
|
|
#else
|
|
#include <gnuradio/analog/sig_source_c.h>
|
|
#endif
|
|
#include "concurrent_queue.h"
|
|
#include "file_signal_source.h"
|
|
#include "gnss_block_factory.h"
|
|
#include "gnss_block_interface.h"
|
|
#include "gnss_sdr_valve.h"
|
|
#include "in_memory_configuration.h"
|
|
#include "notch_filter.h"
|
|
#include <gnuradio/blocks/null_sink.h>
|
|
#include <gtest/gtest.h>
|
|
|
|
|
|
DEFINE_int32(notch_filter_test_nsamples, 1000000, "Number of samples to filter in the tests (max: 2147483647)");
|
|
|
|
class NotchFilterTest : public ::testing::Test
|
|
{
|
|
protected:
|
|
NotchFilterTest()
|
|
{
|
|
queue = std::shared_ptr<Concurrent_Queue<pmt::pmt_t>>();
|
|
item_size = sizeof(gr_complex);
|
|
config = std::make_shared<InMemoryConfiguration>();
|
|
nsamples = FLAGS_notch_filter_test_nsamples;
|
|
}
|
|
~NotchFilterTest() override = default;
|
|
|
|
void init();
|
|
void configure_gr_complex_gr_complex();
|
|
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue;
|
|
gr::top_block_sptr top_block;
|
|
std::shared_ptr<InMemoryConfiguration> config;
|
|
size_t item_size;
|
|
int nsamples;
|
|
};
|
|
|
|
|
|
void NotchFilterTest::init()
|
|
{
|
|
config->set_property("InputFilter.pfa", "0.01");
|
|
config->set_property("InputFilter.p_c_factor", "0.9");
|
|
config->set_property("InputFilter.length", "32");
|
|
config->set_property("InputFilter.segments_est", "12500");
|
|
config->set_property("InputFilter.segments_reset", "5000000");
|
|
}
|
|
|
|
void NotchFilterTest::configure_gr_complex_gr_complex()
|
|
{
|
|
config->set_property("InputFilter.input_item_type", "gr_complex");
|
|
config->set_property("InputFilter.output_item_type", "gr_complex");
|
|
}
|
|
|
|
TEST_F(NotchFilterTest, InstantiateGrComplexGrComplex)
|
|
{
|
|
init();
|
|
configure_gr_complex_gr_complex();
|
|
std::unique_ptr<NotchFilter> filter(new NotchFilter(config.get(), "InputFilter", 1, 1));
|
|
int res = 0;
|
|
if (filter)
|
|
{
|
|
res = 1;
|
|
}
|
|
ASSERT_EQ(1, res);
|
|
}
|
|
|
|
TEST_F(NotchFilterTest, ConnectAndRun)
|
|
{
|
|
int fs_in = 4000000;
|
|
std::chrono::time_point<std::chrono::system_clock> start, end;
|
|
std::chrono::duration<double> elapsed_seconds(0);
|
|
top_block = gr::make_top_block("Notch filter test");
|
|
init();
|
|
configure_gr_complex_gr_complex();
|
|
std::shared_ptr<NotchFilter> filter = std::make_shared<NotchFilter>(config.get(), "InputFilter", 1, 1);
|
|
item_size = sizeof(gr_complex);
|
|
ASSERT_NO_THROW({
|
|
filter->connect(top_block);
|
|
boost::shared_ptr<gr::block> source = gr::analog::sig_source_c::make(fs_in, gr::analog::GR_SIN_WAVE, 1000.0, 1.0, gr_complex(0.0));
|
|
boost::shared_ptr<gr::block> valve = gnss_sdr_make_valve(sizeof(gr_complex), nsamples, queue);
|
|
boost::shared_ptr<gr::block> null_sink = gr::blocks::null_sink::make(item_size);
|
|
|
|
top_block->connect(source, 0, valve, 0);
|
|
top_block->connect(valve, 0, filter->get_left_block(), 0);
|
|
top_block->connect(filter->get_right_block(), 0, null_sink, 0);
|
|
}) << "Failure connecting the top_block.";
|
|
|
|
EXPECT_NO_THROW({
|
|
start = std::chrono::system_clock::now();
|
|
top_block->run(); // Start threads and wait
|
|
end = std::chrono::system_clock::now();
|
|
elapsed_seconds = end - start;
|
|
}) << "Failure running the top_block.";
|
|
std::cout << "Filtered " << nsamples << " samples in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
|
|
}
|
|
|
|
|
|
TEST_F(NotchFilterTest, ConnectAndRunGrcomplex)
|
|
{
|
|
std::chrono::time_point<std::chrono::system_clock> start, end;
|
|
std::chrono::duration<double> elapsed_seconds(0);
|
|
top_block = gr::make_top_block("Notch filter test");
|
|
init();
|
|
configure_gr_complex_gr_complex();
|
|
std::shared_ptr<NotchFilter> filter = std::make_shared<NotchFilter>(config.get(), "InputFilter", 1, 1);
|
|
std::shared_ptr<InMemoryConfiguration> config2 = std::make_shared<InMemoryConfiguration>();
|
|
|
|
config2->set_property("Test_Source.samples", std::to_string(nsamples));
|
|
config2->set_property("Test_Source.sampling_frequency", "4000000");
|
|
std::string path = std::string(TEST_PATH);
|
|
std::string filename = path + "signal_samples/GPS_L1_CA_ID_1_Fs_4Msps_2ms.dat";
|
|
config2->set_property("Test_Source.filename", filename);
|
|
config2->set_property("Test_Source.item_type", "gr_complex");
|
|
config2->set_property("Test_Source.repeat", "true");
|
|
|
|
item_size = sizeof(gr_complex);
|
|
ASSERT_NO_THROW({
|
|
filter->connect(top_block);
|
|
|
|
boost::shared_ptr<FileSignalSource> source(new FileSignalSource(config2.get(), "Test_Source", 0, 1, queue));
|
|
source->connect(top_block);
|
|
|
|
boost::shared_ptr<gr::block> null_sink = gr::blocks::null_sink::make(item_size);
|
|
|
|
top_block->connect(source->get_right_block(), 0, filter->get_left_block(), 0);
|
|
top_block->connect(filter->get_right_block(), 0, null_sink, 0);
|
|
}) << "Failure connecting the top_block.";
|
|
|
|
EXPECT_NO_THROW({
|
|
start = std::chrono::system_clock::now();
|
|
top_block->run(); // Start threads and wait
|
|
end = std::chrono::system_clock::now();
|
|
elapsed_seconds = end - start;
|
|
}) << "Failure running the top_block.";
|
|
std::cout << "Filtered " << nsamples << " gr_complex samples in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
|
|
}
|