2015-05-03 08:50:57 +00:00
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/*!
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* \file code_generation_test.cc
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* \brief This file implements tests for the generation of complex exponentials.
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* \author Carles Fernandez-Prades, 2014. cfernandez(at)cttc.es
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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 <complex>
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#include <ctime>
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#include "gps_sdr_signal_processing.h"
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2015-05-05 14:14:46 +00:00
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#include "gnss_signal_processing.h"
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2015-05-03 08:50:57 +00:00
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TEST(CodeGenGPSL1_Test, CodeGeneration)
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{
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std::complex<float>* _dest = new std::complex<float>[1023];
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signed int _prn = 1;
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unsigned int _chip_shift = 4;
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2015-05-10 11:20:52 +00:00
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int iterations = 1000;
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2015-05-03 08:50:57 +00:00
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struct timeval tv;
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gettimeofday(&tv, NULL);
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long long int begin = tv.tv_sec * 1000000 + tv.tv_usec;
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for(int i = 0; i < iterations; i++)
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{
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gps_l1_ca_code_gen_complex( _dest, _prn, _chip_shift);
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}
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2015-05-13 14:40:46 +00:00
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delete[] _dest;
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2015-05-03 08:50:57 +00:00
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gettimeofday(&tv, NULL);
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long long int end = tv.tv_sec * 1000000 + tv.tv_usec;
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ASSERT_LE(0, end - begin);
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std::cout << "Generation completed in " << (end - begin) << " microseconds" << std::endl;
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2015-05-13 14:40:46 +00:00
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2015-05-03 08:50:57 +00:00
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/* std::complex<float>* _dest2 = new std::complex<float>[1023];gettimeofday(&tv, NULL);
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long long int begin2 = tv.tv_sec * 1000000 + tv.tv_usec;
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for(int i = 0; i < iterations; i++)
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{
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gps_l1_ca_code_gen_complex2( _dest2, _prn, _chip_shift);
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}
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gettimeofday(&tv, NULL);
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long long int end2 = tv.tv_sec * 1000000 + tv.tv_usec;
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std::cout << "Generation 2 completed in " << (end2 - begin2) << " microseconds" << std::endl;
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for (int j=0; j<1023;j++)
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{
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if(_dest[j] != _dest2[j]) std::cout << "Error!" << std::endl;
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}
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delete _dest2; */
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}
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2015-05-05 11:00:24 +00:00
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TEST(CodeGenGPSL1Sampled_Test, CodeGeneration)
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{
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signed int _prn = 1;
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unsigned int _chip_shift = 4;
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double _fs = 8000000;
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2015-05-05 11:00:24 +00:00
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const signed int _codeFreqBasis = 1023000; //Hz
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const signed int _codeLength = 1023;
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2015-05-13 14:40:46 +00:00
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int _samplesPerCode = round(_fs / (double)(_codeFreqBasis / _codeLength));
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2015-05-05 11:00:24 +00:00
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std::complex<float>* _dest = new std::complex<float>[_samplesPerCode];
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2015-05-10 11:20:52 +00:00
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int iterations = 1000;
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2015-05-05 11:00:24 +00:00
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struct timeval tv;
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gettimeofday(&tv, NULL);
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long long int begin = tv.tv_sec * 1000000 + tv.tv_usec;
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for(int i = 0; i < iterations; i++)
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{
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gps_l1_ca_code_gen_complex_sampled( _dest, _prn, _fs, _chip_shift);
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}
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gettimeofday(&tv, NULL);
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long long int end = tv.tv_sec * 1000000 + tv.tv_usec;
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2015-05-13 14:40:46 +00:00
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delete[] _dest;
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2015-05-05 11:00:24 +00:00
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ASSERT_LE(0, end - begin);
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std::cout << "Generation completed in " << (end - begin) << " microseconds" << std::endl;
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2015-05-13 14:40:46 +00:00
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2015-05-05 11:00:24 +00:00
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/* std::complex<float>* _dest2 = new std::complex<float>[_samplesPerCode];
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gettimeofday(&tv, NULL);
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long long int begin2 = tv.tv_sec * 1000000 + tv.tv_usec;
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for(int i = 0; i < iterations; i++)
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{
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gps_l1_ca_code_gen_complex_sampled2( _dest2, _prn, _fs, _chip_shift);
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}
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gettimeofday(&tv, NULL);
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long long int end2 = tv.tv_sec * 1000000 + tv.tv_usec;
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std::cout << "Generation completed in " << (end2 - begin2) << " microseconds (New)" << std::endl;
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for (int j=0; j<_samplesPerCode;j++)
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{
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if(_dest[j] != _dest2[j]) std::cout << "Error!" << std::endl;
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}
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delete[] _dest2; */
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}
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2015-05-05 14:14:46 +00:00
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TEST(ComplexCarrier_Test, CodeGeneration)
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{
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double _fs = 8000000;
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double _f = 4000;
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const signed int _codeFreqBasis = 1023000; //Hz
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const signed int _codeLength = 1023;
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2015-05-13 14:40:46 +00:00
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int _samplesPerCode = round(_fs / (double)(_codeFreqBasis / _codeLength));
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2015-05-05 14:14:46 +00:00
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std::complex<float>* _dest = new std::complex<float>[_samplesPerCode];
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2015-05-10 11:20:52 +00:00
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int iterations = 1000;
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2015-05-05 14:14:46 +00:00
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struct timeval tv;
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gettimeofday(&tv, NULL);
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long long int begin = tv.tv_sec * 1000000 + tv.tv_usec;
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for(int i = 0; i < iterations; i++)
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{
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complex_exp_gen_conj( _dest, _f, _fs, _samplesPerCode);
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}
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gettimeofday(&tv, NULL);
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long long int end = tv.tv_sec * 1000000 + tv.tv_usec;
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2015-05-13 14:40:46 +00:00
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delete[] _dest;
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ASSERT_LE(0, end - begin);
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std::cout << "Carrier generation completed in " << (end - begin) << " microseconds" << std::endl;
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/* std::complex<float>* _dest2 = new std::complex<float>[_samplesPerCode];
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gettimeofday(&tv, NULL);
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long long int begin2 = tv.tv_sec * 1000000 + tv.tv_usec;
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for(int i = 0; i < iterations; i++)
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{
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complex_exp_gen_conj2( _dest2, _f, _fs, _samplesPerCode);
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}
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gettimeofday(&tv, NULL);
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long long int end2 = tv.tv_sec * 1000000 + tv.tv_usec;
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std::cout << "Carrier generation completed in " << (end2 - begin2) << " microseconds (New)" << std::endl;
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for (int j=0; j<_samplesPerCode;j++)
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{
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if(std::abs(_dest[j] - _dest2[j]) > 0.1) std::cout << "Error!" << std::endl;
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}
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std::cout << _dest[10] << "and " << _dest2[10] << std::endl;
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delete[] _dest2;*/
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2015-05-13 14:40:46 +00:00
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2015-05-05 14:14:46 +00:00
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}
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