mirror of https://github.com/gnss-sdr/gnss-sdr
90 lines
3.4 KiB
C++
90 lines
3.4 KiB
C++
/*!
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* \file gps_utc_model.h
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* \brief Interface of a GPS UTC MODEL storage
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* \author Javier Arribas, 2013. jarribas(at)cttc.es
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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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#ifndef GNSS_SDR_GPS_UTC_MODEL_H_
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#define GNSS_SDR_GPS_UTC_MODEL_H_
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#include "boost/assign.hpp"
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#include <boost/serialization/nvp.hpp>
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/*!
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* \brief This class is a storage for the GPS UTC MODEL data as described in IS-GPS-200E
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*
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* See http://www.gps.gov/technical/icwg/IS-GPS-200E.pdf Appendix II
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*/
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class Gps_Utc_Model
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{
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public:
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bool valid;
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// UTC parameters
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double d_A1; //!< 1st order term of a model that relates GPS and UTC time (ref. 20.3.3.5.2.4 IS-GPS-200E) [s/s]
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double d_A0; //!< Constant of a model that relates GPS and UTC time (ref. 20.3.3.5.2.4 IS-GPS-200E) [s]
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double d_t_OT; //!< Reference time for UTC data (reference 20.3.4.5 and 20.3.3.5.2.4 IS-GPS-200E) [s]
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int i_WN_T; //!< UTC reference week number [weeks]
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double d_DeltaT_LS; //!< delta time due to leap seconds [s]. Number of leap seconds since 6-Jan-1980 as transmitted by the GPS almanac.
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int i_WN_LSF; //!< Week number at the end of which the leap second becomes effective [weeks]
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int i_DN; //!< Day number (DN) at the end of which the leap second becomes effective [days]
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double d_DeltaT_LSF; //!< Scheduled future or recent past (relative to NAV message upload) value of the delta time due to leap seconds [s]
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/*!
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* Default constructor
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*/
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Gps_Utc_Model();
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template<class Archive>
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/*
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* \brief Serialize is a boost standard method to be called by the boost XML serialization. Here is used to save the ephemeris data on disk file.
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*/
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inline void serialize(Archive& archive, const unsigned int version)
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{
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using boost::serialization::make_nvp;
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if(version){};
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archive & make_nvp("valid",valid);
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archive & make_nvp("d_A1",d_A1);
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archive & make_nvp("d_A0",d_A0);
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archive & make_nvp("d_t_OT",d_t_OT);
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archive & make_nvp("i_WN_T",i_WN_T);
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archive & make_nvp("d_DeltaT_LS",d_DeltaT_LS);
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archive & make_nvp("i_WN_LSF",i_WN_LSF);
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archive & make_nvp("i_DN",i_DN);
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archive & make_nvp("d_DeltaT_LSF",d_DeltaT_LSF);
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}
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/*!
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* \brief Computes the Coordinated Universal Time (UTC) and
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* returns it in [s] (IS-GPS-200E, 20.3.3.5.2.4)
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*/
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double utc_time(double gpstime_corrected, int i_GPS_week);
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};
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#endif
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