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gnss-sdr/src/tests/unit-tests/signal-processing-blocks/resampler/mmse_resampler_test.cc

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/*!
* \file mmse_resampler_test.cc
* \brief Executes a resampler based on some input parameters.
* \author Carles Fernandez-Prades 2018 cfernandez (at) cttc.cat
*
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2019 (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 <gnuradio/analog/sig_source_waveform.h>
#include <gnuradio/top_block.h>
#include <chrono>
#ifdef GR_GREATER_38
#include <gnuradio/analog/sig_source.h>
#else
#include <gnuradio/analog/sig_source_c.h>
#endif
#include "concurrent_queue.h"
#include "gnss_sdr_valve.h"
#include "mmse_resampler_conditioner.h"
#include <gnuradio/blocks/null_sink.h>
TEST(MmseResamplerTest, InstantiationAndRunTestWarning)
{
double fs_in = 8000000.0; // Input sampling frequency in Hz
double fs_out = 4000000.0; // sampling freuqncy of the resampled signal in Hz
std::chrono::time_point<std::chrono::system_clock> start, end;
std::chrono::duration<double> elapsed_seconds(0);
int nsamples = 1000000; //Number of samples to be computed
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue = std::make_shared<Concurrent_Queue<pmt::pmt_t>>();
gr::top_block_sptr top_block = gr::make_top_block("mmse_resampler_conditioner_cc_test");
boost::shared_ptr<gr::analog::sig_source_c> 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);
std::shared_ptr<InMemoryConfiguration> config;
config = std::make_shared<InMemoryConfiguration>();
config->set_property("Resampler.sample_freq_in", std::to_string(fs_in));
config->set_property("Resampler.sample_freq_out", std::to_string(fs_out));
std::shared_ptr<MmseResamplerConditioner> resampler = std::make_shared<MmseResamplerConditioner>(config.get(), "Resampler", 1, 1);
gr::blocks::null_sink::sptr sink = gr::blocks::null_sink::make(sizeof(gr_complex));
EXPECT_NO_THROW({
resampler->connect(top_block);
top_block->connect(source, 0, valve, 0);
top_block->connect(valve, 0, resampler->get_left_block(), 0);
top_block->connect(resampler->get_right_block(), 0, sink, 0);
}) << "Connection failure of direct_resampler_conditioner.";
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;
top_block->stop();
}) << "Failure running direct_resampler_conditioner.";
std::cout << "Resampled " << nsamples << " samples in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
}
TEST(MmseResamplerTest, InstantiationAndRunTest2)
{
double fs_in = 8000000.0; // Input sampling frequency in Hz
double fs_out = 4000000.0; // sampling freuqncy of the resampled signal in Hz
std::chrono::time_point<std::chrono::system_clock> start, end;
std::chrono::duration<double> elapsed_seconds(0);
int nsamples = 1000000; //Number of samples to be computed
std::shared_ptr<Concurrent_Queue<pmt::pmt_t>> queue = std::make_shared<Concurrent_Queue<pmt::pmt_t>>();
gr::top_block_sptr top_block = gr::make_top_block("mmse_resampler_conditioner_cc_test");
boost::shared_ptr<gr::analog::sig_source_c> 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);
std::shared_ptr<InMemoryConfiguration> config;
config = std::make_shared<InMemoryConfiguration>();
config->set_property("Resampler.sample_freq_in", std::to_string(fs_in));
config->set_property("GNSS-SDR.internal_fs_sps", std::to_string(fs_out));
std::shared_ptr<MmseResamplerConditioner> resampler = std::make_shared<MmseResamplerConditioner>(config.get(), "Resampler", 1, 1);
gr::blocks::null_sink::sptr sink = gr::blocks::null_sink::make(sizeof(gr_complex));
EXPECT_NO_THROW({
resampler->connect(top_block);
top_block->connect(source, 0, valve, 0);
top_block->connect(valve, 0, resampler->get_left_block(), 0);
top_block->connect(resampler->get_right_block(), 0, sink, 0);
}) << "Connection failure of direct_resampler_conditioner.";
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;
top_block->stop();
}) << "Failure running direct_resampler_conditioner.";
std::cout << "Resampled " << nsamples << " samples in " << elapsed_seconds.count() * 1e6 << " microseconds" << std::endl;
}