mirror of
https://github.com/gnss-sdr/gnss-sdr
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228fa3b797
git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@72 64b25241-fba3-4117-9849-534c7e92360d
132 lines
3.5 KiB
C++
132 lines
3.5 KiB
C++
/*!
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* \file gps_navigation_message.h
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* \brief This class implements GPS L1 C/A navigation message decoding
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* \author Javier Arribas, 2011. jarribas(at)cttc.es
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*
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* -------------------------------------------------------------------------
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*
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* Copyright (C) 2010-2011 (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 GPS_NAVIGATION_MESSAGE_H
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#define GPS_NAVIGATION_MESSAGE_H
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#include <iostream>
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#include <map>
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#include <vector>
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#include <string>
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#include <algorithm>
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#include <bitset>
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#include "boost/assign.hpp"
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#include <math.h>
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using namespace boost::assign;
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#include "GPS_L1_CA.h"
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/*!
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* \brief This class implements GPS L1 C/A navigation message decoding
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* and computes satellite position
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*
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* It defines the specific GPS navigation (NAV) data structure,
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* as defined in the document Interface Specification IS-GPS-200 Revision E, Appendix II
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*/
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class gps_navigation_message
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{
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private:
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unsigned long int read_navigation_unsigned(std::bitset<GPS_SUBFRAME_BITS> bits, const bits_slice *slices, int num_of_slices);
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signed long int read_navigation_signed(std::bitset<GPS_SUBFRAME_BITS> bits, const bits_slice *slices, int num_of_slices);
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double check_t(double time);
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public:
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//broadcast orbit 1
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double d_TOW;
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double d_IODE_SF2;
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double d_IODE_SF3;
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double d_Crs;
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double d_Delta_n;
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double d_M_0;
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//broadcast orbit 2
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double d_Cuc;
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double d_e_eccentricity;
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double d_Cus;
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double d_sqrt_A;
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//broadcast orbit 3
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double d_Toe;
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double d_Toc;
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double d_Cic;
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double d_OMEGA0;
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double d_Cis;
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//broadcast orbit 4
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double d_i_0;
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double d_Crc;
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double d_OMEGA;
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double d_OMEGA_DOT;
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//broadcast orbit 5
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double d_IDOT;
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double d_codes_on_L2;
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double d_GPS_week;
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double d_L2_P_data_flag;
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//broadcast orbit 6
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double d_SV_accuracy;
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double d_SV_health;
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double d_TGD;
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double d_IODC;
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//broadcast orbit 7
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double d_transmission_time;
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double d_fit_interval;
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double d_spare1;
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double d_spare2;
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double d_A_f0;
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double d_A_f1;
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double d_A_f2;
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// clock terms
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double d_master_clock; //GPS transmission time
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double d_satClkCorr; // GPS clock error
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double d_dtr; // relativistic clock correction term
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// satellite positions
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double d_satpos_X;
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double d_satpos_Y;
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double d_satpos_Z;
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// satellite identification info
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int d_channel_ID;
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int d_satellite_PRN;
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// public functions
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void reset();
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int subframe_decoder(char *subframe);
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void master_clock();
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void satpos();
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void relativistic_clock_correction();
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bool satellite_validation();
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gps_navigation_message();
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};
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#endif
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