mirror of https://github.com/gnss-sdr/gnss-sdr
437 lines
19 KiB
C++
437 lines
19 KiB
C++
/*!
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* \file main.cc
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* \brief converts navigation RINEX files into XML files for Assisted GNSS.
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* \author Carles Fernandez-Prades, 2018. cfernandez(at)cttc.cat
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*
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*
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* -----------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2020 (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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* SPDX-License-Identifier: GPL-3.0-or-later
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*
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* -----------------------------------------------------------------------------
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*/
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#include "galileo_ephemeris.h" // IWYU pragma: keep
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#include "galileo_iono.h"
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#include "galileo_utc_model.h"
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#include "gps_ephemeris.h"
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#include "gps_iono.h"
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#include "gps_utc_model.h"
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#include <boost/archive/xml_oarchive.hpp>
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#include <boost/iostreams/copy.hpp>
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#include <boost/iostreams/filter/gzip.hpp>
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#include <boost/iostreams/filtering_streambuf.hpp>
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#include <boost/serialization/map.hpp>
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#include <gflags/gflags.h>
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#include <gpstk/Rinex3NavData.hpp>
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#include <gpstk/Rinex3NavHeader.hpp>
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#include <gpstk/Rinex3NavStream.hpp>
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#include <cstddef> // for size_t
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#include <cstdlib>
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#include <iostream>
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#if GFLAGS_OLD_NAMESPACE
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namespace gflags
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{
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using namespace google;
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}
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#endif
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int main(int argc, char** argv)
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{
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const std::string intro_help(
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std::string("\n rinex2assist converts navigation RINEX files into XML files for Assisted GNSS\n") +
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"Copyright (C) 2018 (see AUTHORS file for a list of contributors)\n" +
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"This program comes with ABSOLUTELY NO WARRANTY;\n" +
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"See COPYING file to see a copy of the General Public License.\n \n" +
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"Usage: \n" +
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" rinex2assist <RINEX Nav file input>");
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gflags::SetUsageMessage(intro_help);
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google::SetVersionString("1.0");
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gflags::ParseCommandLineFlags(&argc, &argv, true);
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if ((argc != 2))
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{
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std::cerr << "Usage:\n";
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std::cerr << " " << argv[0]
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<< " <RINEX Nav file input>"
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<< '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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std::string xml_filename;
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// Uncompress if RINEX file is gzipped
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std::string rinex_filename(argv[1]);
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std::string input_filename = rinex_filename;
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std::size_t found = rinex_filename.find_last_of('.');
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if (found != std::string::npos)
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{
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if (rinex_filename.size() >= found + 3)
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{
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if ((rinex_filename.substr(found + 1, found + 3) == "gz"))
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{
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std::ifstream file(rinex_filename, std::ios_base::in | std::ios_base::binary);
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if (file.fail())
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{
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std::cerr << "Could not open file " << rinex_filename << '\n';
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return 1;
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}
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boost::iostreams::filtering_streambuf<boost::iostreams::input> in;
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try
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{
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in.push(boost::iostreams::gzip_decompressor());
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}
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catch (const boost::exception& e)
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{
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std::cerr << "Could not decompress file " << rinex_filename << '\n';
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return 1;
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}
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in.push(file);
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std::string rinex_filename_unzipped = rinex_filename.substr(0, found);
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std::ofstream output_file(rinex_filename_unzipped.c_str(), std::ios_base::out | std::ios_base::binary | std::ios_base::trunc);
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if (file.fail())
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{
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std::cerr << "Could not create file " << rinex_filename_unzipped << '\n';
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return 1;
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}
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boost::iostreams::copy(in, output_file);
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input_filename = rinex_filename_unzipped;
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}
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}
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if (rinex_filename.size() >= found + 2)
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{
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if ((rinex_filename.substr(found + 1, found + 2) == "Z"))
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{
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std::ifstream file(rinex_filename, std::ios_base::in | std::ios_base::binary);
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if (file.fail())
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{
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std::cerr << "Could not open file" << rinex_filename << '\n';
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return 1;
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}
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file.close();
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std::string uncompress_executable(UNCOMPRESS_EXECUTABLE);
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if (!uncompress_executable.empty())
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{
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// option k is not always available, so we save a copy of the original file
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std::string argum = std::string("/bin/cp " + rinex_filename + " " + rinex_filename + ".aux");
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int s1 = std::system(argum.c_str());
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std::string argum2 = std::string(uncompress_executable + " -f " + rinex_filename);
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int s2 = std::system(argum2.c_str());
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std::string argum3 = std::string("/bin/mv " + rinex_filename + +".aux" + " " + rinex_filename);
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int s3 = std::system(argum3.c_str());
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input_filename = rinex_filename.substr(0, found);
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if ((s1 != 0) or (s2 != 0) or (s3 != 0))
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{
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std::cerr << "Failure uncompressing file.\n";
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return 1;
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}
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}
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else
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{
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std::cerr << "uncompress program not found.\n";
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return 1;
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}
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}
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}
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}
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std::map<int, Gps_Ephemeris> eph_map;
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std::map<int, Galileo_Ephemeris> eph_gal_map;
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Gps_Utc_Model gps_utc_model;
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Gps_Iono gps_iono;
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Galileo_Utc_Model gal_utc_model;
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Galileo_Iono gal_iono;
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int i = 0;
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int j = 0;
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try
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{
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// Read nav file
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gpstk::Rinex3NavStream rnffs(input_filename.c_str()); // Open navigation data file
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gpstk::Rinex3NavData rne;
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gpstk::Rinex3NavHeader hdr;
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// Read header
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rnffs >> hdr;
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// Check that it really is a RINEX navigation file
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if (hdr.fileType.substr(0, 1) != "N")
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{
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std::cerr << "This is not a valid RINEX navigation file, or file not found.\n";
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std::cerr << "No XML file will be created.\n";
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return 1;
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}
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// Collect UTC parameters from RINEX header
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if (hdr.fileSys == "G: (GPS)" || hdr.fileSys == "MIXED")
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{
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gps_utc_model.valid = (hdr.valid > 2147483648) ? true : false;
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gps_utc_model.d_A1 = hdr.mapTimeCorr["GPUT"].A0;
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gps_utc_model.d_A0 = hdr.mapTimeCorr["GPUT"].A1;
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gps_utc_model.d_t_OT = hdr.mapTimeCorr["GPUT"].refSOW;
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gps_utc_model.i_WN_T = hdr.mapTimeCorr["GPUT"].refWeek;
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gps_utc_model.d_DeltaT_LS = hdr.leapSeconds;
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gps_utc_model.i_WN_LSF = hdr.leapWeek;
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gps_utc_model.i_DN = hdr.leapDay;
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gps_utc_model.d_DeltaT_LSF = hdr.leapDelta;
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// Collect iono parameters from RINEX header
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gps_iono.valid = (hdr.mapIonoCorr["GPSA"].param[0] == 0) ? false : true;
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gps_iono.d_alpha0 = hdr.mapIonoCorr["GPSA"].param[0];
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gps_iono.d_alpha1 = hdr.mapIonoCorr["GPSA"].param[1];
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gps_iono.d_alpha2 = hdr.mapIonoCorr["GPSA"].param[2];
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gps_iono.d_alpha3 = hdr.mapIonoCorr["GPSA"].param[3];
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gps_iono.d_beta0 = hdr.mapIonoCorr["GPSB"].param[0];
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gps_iono.d_beta1 = hdr.mapIonoCorr["GPSB"].param[1];
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gps_iono.d_beta2 = hdr.mapIonoCorr["GPSB"].param[2];
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gps_iono.d_beta3 = hdr.mapIonoCorr["GPSB"].param[3];
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}
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if (hdr.fileSys == "E: (GAL)" || hdr.fileSys == "MIXED")
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{
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gal_utc_model.A0_6 = hdr.mapTimeCorr["GAUT"].A0;
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gal_utc_model.A1_6 = hdr.mapTimeCorr["GAUT"].A1;
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gal_utc_model.Delta_tLS_6 = hdr.leapSeconds;
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gal_utc_model.t0t_6 = hdr.mapTimeCorr["GAUT"].refSOW;
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gal_utc_model.WNot_6 = hdr.mapTimeCorr["GAUT"].refWeek;
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gal_utc_model.WN_LSF_6 = hdr.leapWeek;
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gal_utc_model.DN_6 = hdr.leapDay;
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gal_utc_model.Delta_tLSF_6 = hdr.leapDelta;
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gal_utc_model.flag_utc_model = (hdr.mapTimeCorr["GAUT"].A0 == 0.0);
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gal_iono.ai0_5 = hdr.mapIonoCorr["GAL"].param[0];
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gal_iono.ai1_5 = hdr.mapIonoCorr["GAL"].param[1];
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gal_iono.ai2_5 = hdr.mapIonoCorr["GAL"].param[2];
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gal_iono.Region1_flag_5 = false;
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gal_iono.Region2_flag_5 = false;
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gal_iono.Region3_flag_5 = false;
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gal_iono.Region4_flag_5 = false;
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gal_iono.Region5_flag_5 = false;
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gal_iono.TOW_5 = 0.0;
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gal_iono.WN_5 = 0.0;
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}
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// Read navigation data
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while (rnffs >> rne)
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{
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if (rne.satSys == "G" or rne.satSys.empty())
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{
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// Fill GPS ephemeris object
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Gps_Ephemeris eph;
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eph.i_satellite_PRN = rne.PRNID;
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eph.d_TOW = rne.xmitTime;
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eph.d_IODE_SF2 = rne.IODE;
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eph.d_IODE_SF3 = rne.IODE;
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eph.d_Crs = rne.Crs;
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eph.d_Delta_n = rne.dn;
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eph.d_M_0 = rne.M0;
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eph.d_Cuc = rne.Cuc;
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eph.d_e_eccentricity = rne.ecc;
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eph.d_Cus = rne.Cus;
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eph.d_sqrt_A = rne.Ahalf;
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eph.d_Toe = rne.Toe;
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eph.d_Toc = rne.Toc;
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eph.d_Cic = rne.Cic;
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eph.d_OMEGA0 = rne.OMEGA0;
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eph.d_Cis = rne.Cis;
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eph.d_i_0 = rne.i0;
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eph.d_Crc = rne.Crc;
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eph.d_OMEGA = rne.w;
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eph.d_OMEGA_DOT = rne.OMEGAdot;
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eph.d_IDOT = rne.idot;
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eph.i_code_on_L2 = rne.codeflgs; //
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eph.i_GPS_week = rne.weeknum;
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eph.b_L2_P_data_flag = rne.L2Pdata;
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eph.i_SV_accuracy = rne.accuracy;
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eph.i_SV_health = rne.health;
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eph.d_TGD = rne.Tgd;
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eph.d_IODC = rne.IODC;
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eph.i_AODO = 0; //
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eph.b_fit_interval_flag = (rne.fitint > 4) ? true : false;
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eph.d_spare1 = 0.0;
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eph.d_spare2 = 0.0;
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eph.d_A_f0 = rne.af0;
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eph.d_A_f1 = rne.af1;
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eph.d_A_f2 = rne.af2;
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eph.b_integrity_status_flag = false; //
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eph.b_alert_flag = false; //
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eph.b_antispoofing_flag = false; //
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eph_map[i] = eph;
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i++;
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}
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if (rne.satSys == "E")
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{
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// Fill Galileo ephemeris object
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Galileo_Ephemeris eph;
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eph.i_satellite_PRN = rne.PRNID;
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eph.M0_1 = rne.M0;
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eph.e_1 = rne.ecc;
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eph.A_1 = rne.Ahalf;
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eph.OMEGA_0_2 = rne.OMEGA0;
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eph.i_0_2 = rne.i0;
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eph.omega_2 = rne.w;
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eph.OMEGA_dot_3 = rne.OMEGAdot;
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eph.delta_n_3 = rne.dn;
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eph.iDot_2 = rne.idot;
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eph.C_uc_3 = rne.Cuc;
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eph.C_us_3 = rne.Cus;
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eph.C_rc_3 = rne.Crc;
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eph.C_rs_3 = rne.Crs;
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eph.C_ic_4 = rne.Cic;
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eph.C_is_4 = rne.Cis;
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eph.t0e_1 = rne.Toe;
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eph.t0c_4 = rne.Toc;
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eph.af0_4 = rne.af0;
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eph.af1_4 = rne.af1;
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eph.af2_4 = rne.af2;
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eph.WN_5 = rne.weeknum;
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eph_gal_map[j] = eph;
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j++;
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}
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}
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}
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catch (std::exception& e)
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{
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std::cerr << "Error reading the RINEX file: " << e.what() << '\n';
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std::cerr << "No XML file will be created.\n";
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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if (i == 0 and j == 0)
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{
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std::cerr << "No navigation data found in the RINEX file. No XML file will be created.\n";
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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// Write XML ephemeris
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if (i != 0)
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{
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std::ofstream ofs;
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if (xml_filename.empty())
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{
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xml_filename = "gps_ephemeris.xml";
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}
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try
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{
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ofs.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
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boost::archive::xml_oarchive xml(ofs);
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xml << boost::serialization::make_nvp("GNSS-SDR_ephemeris_map", eph_map);
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}
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catch (std::exception& e)
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{
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std::cerr << "Problem creating the XML file " << xml_filename << ": " << e.what() << '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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std::cout << "Generated file: " << xml_filename << '\n';
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}
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if (j != 0)
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{
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std::ofstream ofs2;
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xml_filename = "gal_ephemeris.xml";
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try
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{
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ofs2.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
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boost::archive::xml_oarchive xml(ofs2);
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xml << boost::serialization::make_nvp("GNSS-SDR_gal_ephemeris_map", eph_gal_map);
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}
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catch (std::exception& e)
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{
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std::cerr << "Problem creating the XML file " << xml_filename << ": " << e.what() << '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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std::cout << "Generated file: " << xml_filename << '\n';
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}
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// Write XML UTC
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if (gps_utc_model.valid)
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{
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std::ofstream ofs3;
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xml_filename = "gps_utc_model.xml";
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try
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{
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ofs3.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
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boost::archive::xml_oarchive xml(ofs3);
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xml << boost::serialization::make_nvp("GNSS-SDR_utc_model", gps_utc_model);
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}
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catch (std::exception& e)
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{
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std::cerr << "Problem creating the XML file " << xml_filename << ": " << e.what() << '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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std::cout << "Generated file: " << xml_filename << '\n';
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}
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// Write XML iono
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if (gps_iono.valid)
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{
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std::ofstream ofs4;
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xml_filename = "gps_iono.xml";
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try
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{
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ofs4.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
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boost::archive::xml_oarchive xml(ofs4);
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xml << boost::serialization::make_nvp("GNSS-SDR_iono_model", gps_iono);
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}
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catch (std::exception& e)
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{
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std::cerr << "Problem creating the XML file " << xml_filename << ": " << e.what() << '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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std::cout << "Generated file: " << xml_filename << '\n';
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}
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if (gal_utc_model.A0_6 != 0)
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{
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std::ofstream ofs5;
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xml_filename = "gal_utc_model.xml";
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try
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{
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ofs5.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
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boost::archive::xml_oarchive xml(ofs5);
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xml << boost::serialization::make_nvp("GNSS-SDR_gal_utc_model", gal_utc_model);
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}
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catch (std::exception& e)
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{
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std::cerr << "Problem creating the XML file " << xml_filename << ": " << e.what() << '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
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}
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std::cout << "Generated file: " << xml_filename << '\n';
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}
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if (gal_iono.ai0_5 != 0)
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{
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std::ofstream ofs7;
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xml_filename = "gal_iono.xml";
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try
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{
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ofs7.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
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boost::archive::xml_oarchive xml(ofs7);
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xml << boost::serialization::make_nvp("GNSS-SDR_gal_iono_model", gal_iono);
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}
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catch (std::exception& e)
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{
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std::cerr << "Problem creating the XML file " << xml_filename << ": " << e.what() << '\n';
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gflags::ShutDownCommandLineFlags();
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return 1;
|
|
}
|
|
std::cout << "Generated file: " << xml_filename << '\n';
|
|
}
|
|
gflags::ShutDownCommandLineFlags();
|
|
return 0;
|
|
}
|