mirror of https://github.com/gnss-sdr/gnss-sdr
82 lines
3.0 KiB
C++
82 lines
3.0 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) 2010-2019 (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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#ifndef GNSS_SDR_GPS_UTC_MODEL_H
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#define GNSS_SDR_GPS_UTC_MODEL_H
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#include <boost/serialization/nvp.hpp>
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#include <cstdint>
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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-200K
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*
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* See https://www.gps.gov/technical/icwg/IS-GPS-200K.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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/*!
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* Default constructor
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*/
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Gps_Utc_Model() = default;
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// UTC parameters
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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-200K) [s]
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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-200K) [s/s]
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double d_A2{}; //!< 2nd order term of a model that relates GPS and UTC time (ref. 20.3.3.5.2.4 IS-GPS-200K) [s/s]
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int32_t d_t_OT{}; //!< Reference time for UTC data (reference 20.3.4.5 and 20.3.3.5.2.4 IS-GPS-200K) [s]
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int32_t i_WN_T{}; //!< UTC reference week number [weeks]
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int32_t 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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int32_t i_WN_LSF{}; //!< Week number at the end of which the leap second becomes effective [weeks]
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int32_t i_DN{}; //!< Day number (DN) at the end of which the leap second becomes effective [days]
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int32_t 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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bool valid{};
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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 uint32_t version)
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{
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using boost::serialization::make_nvp;
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if (version)
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{
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};
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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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archive& make_nvp("valid", valid);
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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-200K, 20.3.3.5.2.4)
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*/
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double utc_time(double gpstime_corrected, int32_t i_GPS_week);
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};
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#endif
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