mirror of
https://github.com/gnss-sdr/gnss-sdr
synced 2024-12-16 21:20:34 +00:00
107 lines
4.1 KiB
C++
107 lines
4.1 KiB
C++
/*!
|
|
* \file acquisition_dump_reader.cc
|
|
* \brief Helper file for unit testing
|
|
* \author Carles Fernandez-Prades, 2017. cfernandez(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/>.
|
|
*
|
|
* -------------------------------------------------------------------------
|
|
*/
|
|
|
|
#include <complex>
|
|
#include "acquisition_dump_reader.h"
|
|
|
|
bool acquisition_dump_reader::read_binary_acq()
|
|
{
|
|
std::complex<float>* aux = new std::complex<float>[1];
|
|
for(int i = 0; i < d_num_doppler_bins; i++)
|
|
{
|
|
try
|
|
{
|
|
std::ifstream ifs;
|
|
ifs.exceptions( std::ifstream::failbit | std::ifstream::badbit );
|
|
ifs.open(d_dump_filenames.at(i).c_str(), std::ios::in | std::ios::binary);
|
|
d_dump_files.at(i).swap(ifs);
|
|
if (d_dump_files.at(i).is_open())
|
|
{
|
|
for(int k = 0; k < d_samples_per_code; k++)
|
|
{
|
|
d_dump_files.at(i).read(reinterpret_cast<char *>(&aux[0]), sizeof(std::complex<float>));
|
|
mag.at(i).at(k) = std::abs(*aux) / std::pow(d_samples_per_code, 2);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
std::cout << "File " << d_dump_filenames.at(i).c_str() << " not found." << std::endl;
|
|
delete[] aux;
|
|
return false;
|
|
}
|
|
d_dump_files.at(i).close();
|
|
}
|
|
catch (const std::ifstream::failure &e)
|
|
{
|
|
std::cout << e.what() << std::endl;
|
|
delete[] aux;
|
|
return false;
|
|
}
|
|
}
|
|
delete[] aux;
|
|
return true;
|
|
}
|
|
|
|
|
|
acquisition_dump_reader::acquisition_dump_reader(const std::string & basename, unsigned int sat, unsigned int doppler_max, unsigned int doppler_step, unsigned int samples_per_code)
|
|
{
|
|
d_basename = basename;
|
|
d_sat = sat;
|
|
d_doppler_max = doppler_max;
|
|
d_doppler_step = doppler_step;
|
|
d_samples_per_code = samples_per_code;
|
|
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)));
|
|
std::vector<std::vector<float> > mag_aux(d_num_doppler_bins, std::vector<float>(d_samples_per_code));
|
|
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");
|
|
std::ifstream ifs;
|
|
d_dump_files.push_back(std::move(ifs));
|
|
}
|
|
for (unsigned int k = 0; k < d_samples_per_code; k++)
|
|
{
|
|
samples.push_back(k);
|
|
}
|
|
}
|
|
|
|
|
|
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();
|
|
}
|
|
}
|
|
}
|