gnss-sdr/src/core/system_parameters/glonass_gnav_utc_model.cc

54 lines
1.6 KiB
C++

/*
* \file glonass_gnav_utc_model.h
* \brief Interface of a GLONASS GNAV UTC MODEL storage
* \author Damian Miralles, 2017. dmiralles2009(at).gmail.com
*
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2015 (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 "glonass_gnav_utc_model.h"
#include <cmath>
Glonass_Gnav_Utc_Model::Glonass_Gnav_Utc_Model()
{
valid = false;
d_tau_c = 0.0;
d_tau_gps = 0.0;
d_N_4 = 0.0;
d_N_A = 0.0;
d_B1 = 0.0;
d_B2 = 0.0;
}
double Glonass_Gnav_Utc_Model::utc_time(double glonass_time_corrected)
{
double t_utc;
// GLONASS Time is relative to UTC Moscow, so we simply add its time difference
t_utc = glonass_time_corrected + 3*3600 + d_tau_c;
return t_utc;
}