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Add utility for assisted GNSS

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This commit is contained in:
Carles Fernandez 2018-10-16 17:25:42 +02:00
parent f2b692ccca
commit 31ebf2a311
3 changed files with 286 additions and 0 deletions
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4
src/utils/CMakeLists.txt
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@ -17,3 +17,7 @@
#
add_subdirectory(front-end-cal)
if(ENABLE_UNIT_TESTING_EXTRA OR ENABLE_SYSTEM_TESTING_EXTRA OR ENABLE_FPGA)
add_subdirectory(assist)
endif(ENABLE_UNIT_TESTING_EXTRA OR ENABLE_SYSTEM_TESTING_EXTRA OR ENABLE_FPGA)

56
src/utils/assist/CMakeLists.txt Normal file
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@ -0,0 +1,56 @@
# Copyright (C) 2012-2018 (see AUTHORS file for a list of contributors)
#
# 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/>.
#
find_package(GPSTK QUIET)
if(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
set(GPSTK_LIBRARY ${CMAKE_CURRENT_SOURCE_DIR}/../../../thirdparty/gpstk-${GNSSSDR_GPSTK_LOCAL_VERSION}/install/lib/${CMAKE_FIND_LIBRARY_PREFIXES}gpstk${CMAKE_SHARED_LIBRARY_SUFFIX} )
set(GPSTK_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../thirdparty/gpstk-${GNSSSDR_GPSTK_LOCAL_VERSION}/install/include )
endif(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
set(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} ${GPSTK_INCLUDE_DIR}/gpstk)
include_directories(
${CMAKE_SOURCE_DIR}/src/core/system_parameters
${GFlags_INCLUDE_DIRS}
${Boost_INCLUDE_DIRS}
${GPSTK_INCLUDE_DIR}/gpstk
${GPSTK_INCLUDE_DIR}
)
add_executable(rinex2assist ${CMAKE_CURRENT_SOURCE_DIR}/main.cc)
target_link_libraries(rinex2assist
${Boost_LIBRARIES}
${GPSTK_LIBRARY}
${GFlags_LIBS}
gnss_sp_libs
gnss_rx)
if(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
add_dependencies(rinex2assist gpstk-${GNSSSDR_GPSTK_LOCAL_VERSION})
endif(NOT GPSTK_FOUND OR ENABLE_OWN_GPSTK)
add_custom_command(TARGET rinex2assist POST_BUILD
COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:rinex2assist>
${CMAKE_SOURCE_DIR}/install/$<TARGET_FILE_NAME:rinex2assist>)
install(TARGETS rinex2assist
RUNTIME DESTINATION bin
COMPONENT "rinex2assist"
)

226
src/utils/assist/main.cc Normal file
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@ -0,0 +1,226 @@
/*!
* \file main.cc
* \brief converts navigation RINEX files into XML files for Assisted GNSS.
* \author Carles Fernandez-Prades, 2018. cfernandez(at)cttc.cat
*
*
* -------------------------------------------------------------------------
*
* 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 "gnss_sdr_flags.h"
#include "gps_ephemeris.h"
#include "galileo_ephemeris.h"
#include <gflags/gflags.h>
#include <gpstk/Rinex3NavHeader.hpp>
#include <gpstk/Rinex3NavData.hpp>
#include <gpstk/Rinex3NavStream.hpp>
#include <boost/archive/xml_oarchive.hpp>
#include <boost/serialization/map.hpp>
int main(int argc, char** argv)
{
const std::string intro_help(
std::string("\n rinex2assist converts navigation RINEX files into XML files for Assisted GNSS\n") +
"Copyright (C) 2018 (see AUTHORS file for a list of contributors)\n" +
"This program comes with ABSOLUTELY NO WARRANTY;\n" +
"See COPYING file to see a copy of the General Public License.\n \n" +
"Usage: \n" +
" rinex2assist <RINEX Nav file input> [<XML file output>]");
google::SetUsageMessage(intro_help);
google::SetVersionString("1.0");
google::ParseCommandLineFlags(&argc, &argv, true);
if ((argc < 2) or (argc > 3))
{
std::cerr << "Usage:" << std::endl;
std::cerr << " " << argv[0]
<< " <RINEX Nav file input> [<XML file output>]"
<< std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
std::string xml_filename;
if (argc == 3)
{
xml_filename = argv[2];
}
//std::string filename_rinex_nav = FLAGS_filename_rinex_nav;
std::map<int, Gps_Ephemeris> eph_map;
std::map<int, Galileo_Ephemeris> eph_gal_map;
int i = 0;
int j = 0;
try
{
// Read nav file
gpstk::Rinex3NavStream rnffs(argv[1]); // Open navigation data file
gpstk::Rinex3NavData rne;
gpstk::Rinex3NavHeader hdr;
// read header
rnffs >> hdr;
// Check that it really is a RINEX navigation file
if (hdr.fileType.substr(0, 1).compare("N") != 0)
{
std::cout << "This is not a valid RINEX navigation file" << std::endl;
return 1;
}
while (rnffs >> rne)
{
if (rne.satSys.compare("G") == 0 or rne.satSys.empty())
{
// Fill ephemeris object
Gps_Ephemeris eph;
eph.i_satellite_PRN = rne.PRNID;
eph.d_TOW = rne.xmitTime;
eph.d_IODE_SF2 = rne.IODE;
eph.d_IODE_SF3 = rne.IODE;
eph.d_Crs = rne.Crs;
eph.d_Delta_n = rne.dn;
eph.d_M_0 = rne.M0;
eph.d_Cuc = rne.Cuc;
eph.d_e_eccentricity = rne.ecc;
eph.d_Cus = rne.Cus;
eph.d_sqrt_A = rne.Ahalf;
eph.d_Toe = rne.Toe;
eph.d_Toc = rne.Toc;
eph.d_Cic = rne.Cic;
eph.d_OMEGA0 = rne.OMEGA0;
eph.d_Cis = rne.Cis;
eph.d_i_0 = rne.i0;
eph.d_Crc = rne.Crc;
eph.d_OMEGA = rne.w;
eph.d_OMEGA_DOT = rne.OMEGAdot;
eph.d_IDOT = rne.idot;
eph.i_code_on_L2 = rne.codeflgs; //!< If 1, P code ON in L2; if 2, C/A code ON in L2;
eph.i_GPS_week = rne.weeknum;
eph.b_L2_P_data_flag = rne.L2Pdata;
eph.i_SV_accuracy = rne.accuracy;
eph.i_SV_health = rne.health;
eph.d_TGD = rne.Tgd;
eph.d_IODC = rne.IODC;
eph.i_AODO = 0; //
eph.b_fit_interval_flag = (rne.fitint > 4) ? 1 : 0;
eph.d_spare1 = 0.0;
eph.d_spare2 = 0.0;
eph.d_A_f0 = rne.af0;
eph.d_A_f1 = rne.af1;
eph.d_A_f2 = rne.af2;
eph.b_integrity_status_flag = 0; //
eph.b_alert_flag = 0; //
eph.b_antispoofing_flag = 0; //
eph_map[i] = eph;
i++;
}
if (rne.satSys.compare("E") == 0)
{
// Read Galileo ephemeris
Galileo_Ephemeris eph;
eph.i_satellite_PRN = rne.PRNID;
eph.M0_1 = rne.M0;
eph.e_1 = rne.ecc;
eph.A_1 = rne.Ahalf;
eph.OMEGA_0_2 = rne.OMEGA0;
eph.i_0_2 = rne.i0;
eph.omega_2 = rne.w;
eph.OMEGA_dot_3 = rne.OMEGAdot;
eph.iDot_2 = rne.idot;
eph.C_uc_3 = rne.Cuc;
eph.C_us_3 = rne.Cus;
eph.C_rc_3 = rne.Crc;
eph.C_rs_3 = rne.Crs;
eph.C_ic_4 = rne.Cic;
eph.C_is_4 = rne.Cis;
eph.t0e_1 = rne.Toe;
eph.t0c_4 = rne.Toc;
eph.af0_4 = rne.af0;
eph.af1_4 = rne.af1;
eph.af2_4 = rne.af2;
eph_gal_map[j] = eph;
j++;
}
}
}
catch (std::exception& e)
{
std::cout << "Error reading the RINEX file: " << e.what() << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
if (i == 0 and j == 0)
{
std::cout << "No data found in the RINEX file. No XML file will be created." << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
// Write XML
if (i != 0)
{
std::ofstream ofs;
if (xml_filename.empty())
{
xml_filename = "eph_GPS_L1CA.xml";
}
try
{
ofs.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
boost::archive::xml_oarchive xml(ofs);
xml << boost::serialization::make_nvp("GNSS-SDR_ephemeris_map", eph_map);
}
catch (std::exception& e)
{
std::cout << "Problem creating the XML file: " << e.what() << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
}
if (j != 0)
{
std::ofstream ofs2;
if (xml_filename.empty())
{
xml_filename = "eph_Galileo_E1.xml";
}
try
{
ofs2.open(xml_filename.c_str(), std::ofstream::trunc | std::ofstream::out);
boost::archive::xml_oarchive xml(ofs2);
xml << boost::serialization::make_nvp("GNSS-SDR_ephemeris_map", eph_gal_map);
}
catch (std::exception& e)
{
std::cout << "Problem creating the XML file: " << e.what() << std::endl;
google::ShutDownCommandLineFlags();
return 1;
}
}
google::ShutDownCommandLineFlags();
return 0;
}