mirror of https://github.com/gnss-sdr/gnss-sdr
102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/*!
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* \file gps_cnav_navigation_message.h
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* \brief Interface of a GPS CNAV Data message decoder
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* \author Javier Arribas, 2015. 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_CNAV_NAVIGATION_MESSAGE_H
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#define GNSS_SDR_GPS_CNAV_NAVIGATION_MESSAGE_H
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#include "GPS_CNAV.h"
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#include "gps_cnav_ephemeris.h"
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#include "gps_cnav_iono.h"
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#include "gps_cnav_utc_model.h"
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#include <bitset>
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#include <cstdint>
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#include <map>
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#include <string>
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#include <utility>
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#include <vector>
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/*!
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* \brief This class decodes a GPS CNAV Data message 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 III
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*/
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class Gps_CNAV_Navigation_Message
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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_CNAV_Navigation_Message();
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void decode_page(std::bitset<GPS_CNAV_DATA_PAGE_BITS> data_bits);
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/*!
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* \brief Obtain a GPS SV Ephemeris class filled with current SV data
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*/
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Gps_CNAV_Ephemeris get_ephemeris() const;
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/*!
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* \brief Check if we have a new iono record stored in the GPS ephemeris class
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*/
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bool have_new_iono();
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/*!
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* \brief Obtain a GPS ionospheric correction parameters class filled with current SV data
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*/
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Gps_CNAV_Iono get_iono() const;
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/*!
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* \brief Obtain a GPS UTC model parameters class filled with current SV data
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*/
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Gps_CNAV_Utc_Model get_utc_model();
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/*!
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* \briefCheck if we have a new GPS UTC model record stored in the GPS ephemeris class
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*/
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bool have_new_utc_model();
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/*!
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* \brief Check if we have a new ephemeris stored in the GPS ephemeris class
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*/
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bool have_new_ephemeris();
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private:
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uint64_t read_navigation_unsigned(std::bitset<GPS_CNAV_DATA_PAGE_BITS> bits, const std::vector<std::pair<int32_t, int32_t>>& parameter) const;
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int64_t read_navigation_signed(std::bitset<GPS_CNAV_DATA_PAGE_BITS> bits, const std::vector<std::pair<int32_t, int32_t>>& parameter) const;
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bool read_navigation_bool(std::bitset<GPS_CNAV_DATA_PAGE_BITS> bits, const std::vector<std::pair<int32_t, int32_t>>& parameter) const;
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Gps_CNAV_Ephemeris ephemeris_record{};
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Gps_CNAV_Iono iono_record{};
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Gps_CNAV_Utc_Model utc_model_record{};
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std::map<int32_t, std::string> satelliteBlock; //!< Map that stores to which block the PRN belongs https://www.navcen.uscg.gov/?Do=constellationStatus
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int32_t d_TOW{};
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bool b_flag_ephemeris_1{};
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bool b_flag_ephemeris_2{};
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bool b_flag_iono_valid{}; //!< If set, it indicates that the ionospheric parameters are filled and are not yet read by the get_iono
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bool b_flag_utc_valid{}; //!< If set, it indicates that the utc parameters are filled and are not yet read by the get_utc_model
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};
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#endif
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