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gnss-sdr/src/core/system_parameters/galileo_ephemeris.h

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/*!
* \file galileo_navigation_message.h
* \brief Interface of a GPS EPHEMERIS storage
* \author Javier Arribas, 2013. jarribas(at)cttc.es
* \author Mara Branzanti 2013. mara.branzanti(at)gmail.com
* -------------------------------------------------------------------------
*
* Copyright (C) 2010-2013 (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/>.
*
* -------------------------------------------------------------------------
*/
#ifndef GNSS_SDR_GALILEO_EPHEMERIS_H_
#define GNSS_SDR_GALILEO_EPHEMERIS_H_
#include <iostream>
#include <map>
#include "boost/assign.hpp"
#include <boost/serialization/nvp.hpp>
#include "Galileo_E1.h"
/*!
* \brief This class is a storage and orbital model functions for the Galileo SV ephemeris data as described in Galileo ICD paragraph 5.1.1
*
*/
class Galileo_Ephemeris
{
private:
public:
/*Galileo ephemeris are 16 parameters and here are reported following the ICD order, paragraph 5.1.1.
The number in the name after underscore (_1, _2, _3 and so on) refers to the page were we can find that parameter */
int SV_ID_PRN_4;
double M0_1; // Mean anomaly at reference time [semi-circles]
double delta_n_3; // Mean motion difference from computed value [semi-circles/sec]
double e_1; // Eccentricity
double A_1; // Square root of the semi-major axis [metres^1/2]
double OMEGA_0_2; // Longitude of ascending node of orbital plane at weekly epoch [semi-circles]
double i_0_2; // Inclination angle at reference time [semi-circles]
double omega_2; // Argument of perigee [semi-circles]
double OMEGA_dot_3; // Rate of right ascension [semi-circles/sec]
double iDot_2; // Rate of inclination angle [semi-circles/sec]
double C_uc_3; // Amplitude of the cosine harmonic correction term to the argument of latitude [radians]
double C_us_3; // Amplitude of the sine harmonic correction term to the argument of latitude [radians]
double C_rc_3; // Amplitude of the cosine harmonic correction term to the orbit radius [meters]
double C_rs_3; // Amplitude of the sine harmonic correction term to the orbit radius [meters]
double C_ic_4; // Amplitude of the cosine harmonic correction term to the angle of inclination [radians]
double C_is_4; // Amplitude of the sine harmonic correction term to the angle of inclination [radians]
double t0e_1; // Ephemeris reference time [s]
/*Clock correction parameters*/
double t0c_4; //Clock correction data reference Time of Week [sec]
double af0_4; //SV clock bias correction coefficient [s]
double af1_4; //SV clock drift correction coefficient [s/s]
double af2_4; //SV clock drift rate correction coefficient [s/s^2]
/*GST*/
double WN_5; //Week number
double TOW_5; //Time of Week
double Galileo_satClkDrift;
double Galileo_dtr; // relativistic clock correction term
// satellite positions
double galileo_satpos_X; //!< Earth-fixed coordinate x of the satellite [m]. Intersection of the IERS Reference Meridian (IRM) and the plane passing through the origin and normal to the Z-axis.
double galileo_satpos_Y; //!< Earth-fixed coordinate y of the satellite [m]. Completes a right-handed, Earth-Centered, Earth-Fixed orthogonal coordinate system.
double galileo_satpos_Z; //!< Earth-fixed coordinate z of the satellite [m]. The direction of the IERS (International Earth Rotation and Reference Systems Service) Reference Pole (IRP).
// Satellite velocity
double galileo_satvel_X; //!< Earth-fixed velocity coordinate x of the satellite [m]
double galileo_satvel_Y; //!< Earth-fixed velocity coordinate y of the satellite [m]
double galileo_satvel_Z; //!< Earth-fixed velocity coordinate z of the satellite [m]
/*The following parameters refers to GPS
unsigned int i_satellite_PRN; // SV PRN NUMBER
double d_TOW; //!< Time of GPS Week of the ephemeris set (taken from subframes TOW) [s]
double d_Crs; //!< Amplitude of the Sine Harmonic Correction Term to the Orbit Radius [m]
double d_Delta_n; //!< Mean Motion Difference From Computed Value [semi-circles/s]
double d_M_0; //!< Mean Anomaly at Reference Time [semi-circles]
double d_Cuc; //!< Amplitude of the Cosine Harmonic Correction Term to the Argument of Latitude [rad]
double d_e_eccentricity; //!< Eccentricity [dimensionless]
double d_Cus; //!< Amplitude of the Sine Harmonic Correction Term to the Argument of Latitude [rad]
double d_sqrt_A; //!< Square Root of the Semi-Major Axis [sqrt(m)]
double d_Toe; //!< Ephemeris data reference time of week (Ref. 20.3.3.4.3 IS-GPS-200E) [s]
double d_Toc; //!< clock data reference time (Ref. 20.3.3.3.3.1 IS-GPS-200E) [s]
double d_Cic; //!< Amplitude of the Cosine Harmonic Correction Term to the Angle of Inclination [rad]
double d_OMEGA0; //!< Longitude of Ascending Node of Orbit Plane at Weekly Epoch [semi-circles]
double d_Cis; //!< Amplitude of the Sine Harmonic Correction Term to the Angle of Inclination [rad]
double d_i_0; //!< Inclination Angle at Reference Time [semi-circles]
double d_Crc; //!< Amplitude of the Cosine Harmonic Correction Term to the Orbit Radius [m]
double d_OMEGA; //!< Argument of Perigee [semi-cicles]
double d_OMEGA_DOT; //!< Rate of Right Ascension [semi-circles/s]
double d_IDOT; //!< Rate of Inclination Angle [semi-circles/s]
int i_code_on_L2; //!< If 1, P code ON in L2; if 2, C/A code ON in L2;
int i_GPS_week; //!< GPS week number, aka WN [week]
bool b_L2_P_data_flag; //!< When true, indicates that the NAV data stream was commanded OFF on the P-code of the L2 channel
int i_SV_accuracy; //!< User Range Accuracy (URA) index of the SV (reference paragraph 6.2.1) for the standard positioning service user (Ref 20.3.3.3.1.3 IS-GPS-200E)
int i_SV_health;
double d_TGD; //!< Estimated Group Delay Differential: L1-L2 correction term only for the benefit of "L1 P(Y)" or "L2 P(Y)" s users [s]
double d_IODC; //!< Issue of Data, Clock
int i_AODO; //!< Age of Data Offset (AODO) term for the navigation message correction table (NMCT) contained in subframe 4 (reference paragraph 20.3.3.5.1.9) [s]
bool b_fit_interval_flag;//!< indicates the curve-fit interval used by the CS (Block II/IIA/IIR/IIR-M/IIF) and SS (Block IIIA) in determining the ephemeris parameters, as follows: 0 = 4 hours, 1 = greater than 4 hours.
double d_spare1;
double d_spare2;
double d_A_f0; //!< Coefficient 0 of code phase offset model [s]
double d_A_f1; //!< Coefficient 1 of code phase offset model [s/s]
double d_A_f2; //!< Coefficient 2 of code phase offset model [s/s^2]
// Flags
bool b_integrity_status_flag;
bool b_alert_flag; //!< If true, indicates that the SV URA may be worse than indicated in d_SV_accuracy, use that SV at our own risk.
bool b_antispoofing_flag; //!< If true, the AntiSpoofing mode is ON in that SV
// clock terms derived from ephemeris data
double d_satClkDrift; // GPS clock error
double d_dtr; // relativistic clock correction term
// satellite positions
double d_satpos_X; //!< Earth-fixed coordinate x of the satellite [m]. Intersection of the IERS Reference Meridian (IRM) and the plane passing through the origin and normal to the Z-axis.
double d_satpos_Y; //!< Earth-fixed coordinate y of the satellite [m]. Completes a right-handed, Earth-Centered, Earth-Fixed orthogonal coordinate system.
double d_satpos_Z; //!< Earth-fixed coordinate z of the satellite [m]. The direction of the IERS (International Earth Rotation and Reference Systems Service) Reference Pole (IRP).
// Satellite velocity
double d_satvel_X; //!< Earth-fixed velocity coordinate x of the satellite [m]
double d_satvel_Y; //!< Earth-fixed velocity coordinate y of the satellite [m]
double d_satvel_Z; //!< Earth-fixed velocity coordinate z of the satellite [m]
std::map<int,std::string> satelliteBlock; //!< Map that stores to which block the PRN belongs http://www.navcen.uscg.gov/?Do=constellationStatus
template<class Archive>
\\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.
void serialize(Archive& archive, const unsigned int version)
{
using boost::serialization::make_nvp;
archive & make_nvp("i_satellite_PRN",i_satellite_PRN); // SV PRN NUMBER
archive & make_nvp("d_TOW",d_TOW); //!< Time of GPS Week of the ephemeris set (taken from subframes TOW) [s]
archive & make_nvp("d_Crs",d_Crs); //!< Amplitude of the Sine Harmonic Correction Term to the Orbit Radius [m]
archive & make_nvp("d_Delta_n",d_Delta_n); //!< Mean Motion Difference From Computed Value [semi-circles/s]
archive & make_nvp("d_M_0",d_M_0); //!< Mean Anomaly at Reference Time [semi-circles]
archive & make_nvp("d_Cuc",d_Cuc); //!< Amplitude of the Cosine Harmonic Correction Term to the Argument of Latitude [rad]
archive & make_nvp("d_e_eccentricity",d_e_eccentricity); //!< Eccentricity [dimensionless]
archive & make_nvp("d_Cus",d_Cus); //!< Amplitude of the Sine Harmonic Correction Term to the Argument of Latitude [rad]
archive & make_nvp("d_sqrt_A",d_sqrt_A); //!< Square Root of the Semi-Major Axis [sqrt(m)]
archive & make_nvp("d_Toe",d_Toe); //!< Ephemeris data reference time of week (Ref. 20.3.3.4.3 IS-GPS-200E) [s]
archive & make_nvp("d_Toc",d_Toe); //!< clock data reference time (Ref. 20.3.3.3.3.1 IS-GPS-200E) [s]
archive & make_nvp("d_Cic",d_Cic); //!< Amplitude of the Cosine Harmonic Correction Term to the Angle of Inclination [rad]
archive & make_nvp("d_OMEGA0",d_OMEGA0); //!< Longitude of Ascending Node of Orbit Plane at Weekly Epoch [semi-circles]
archive & make_nvp("d_Cis",d_Cis); //!< Amplitude of the Sine Harmonic Correction Term to the Angle of Inclination [rad]
archive & make_nvp("d_i_0",d_i_0); //!< Inclination Angle at Reference Time [semi-circles]
archive & make_nvp("d_Crc",d_Crc); //!< Amplitude of the Cosine Harmonic Correction Term to the Orbit Radius [m]
archive & make_nvp("d_OMEGA",d_OMEGA); //!< Argument of Perigee [semi-cicles]
archive & make_nvp("d_OMEGA_DOT",d_OMEGA_DOT); //!< Rate of Right Ascension [semi-circles/s]
archive & make_nvp("d_IDOT",d_IDOT); //!< Rate of Inclination Angle [semi-circles/s]
archive & make_nvp("i_code_on_L2",i_code_on_L2); //!< If 1, P code ON in L2; if 2, C/A code ON in L2;
archive & make_nvp("i_GPS_week",i_GPS_week); //!< GPS week number, aka WN [week]
archive & make_nvp("b_L2_P_data_flag",b_L2_P_data_flag); //!< When true, indicates that the NAV data stream was commanded OFF on the P-code of the L2 channel
archive & make_nvp("i_SV_accuracy",i_SV_accuracy); //!< User Range Accuracy (URA) index of the SV (reference paragraph 6.2.1) for the standard positioning service user (Ref 20.3.3.3.1.3 IS-GPS-200E)
archive & make_nvp("i_SV_health",i_SV_health);
archive & make_nvp("d_TGD",d_TGD); //!< Estimated Group Delay Differential: L1-L2 correction term only for the benefit of "L1 P(Y)" or "L2 P(Y)" s users [s]
archive & make_nvp("d_IODC",d_IODC); //!< Issue of Data, Clock
archive & make_nvp("i_AODO",i_AODO); //!< Age of Data Offset (AODO) term for the navigation message correction table (NMCT) contained in subframe 4 (reference paragraph 20.3.3.5.1.9) [s]
archive & make_nvp("b_fit_interval_flag",b_fit_interval_flag);//!< indicates the curve-fit interval used by the CS (Block II/IIA/IIR/IIR-M/IIF) and SS (Block IIIA) in determining the ephemeris parameters, as follows: 0 = 4 hours, 1 = greater than 4 hours.
archive & make_nvp("d_spare1",d_spare1);
archive & make_nvp("d_spare2",d_spare2);
archive & make_nvp("d_A_f0",d_A_f0); //!< Coefficient 0 of code phase offset model [s]
archive & make_nvp("d_A_f1",d_A_f1); //!< Coefficient 1 of code phase offset model [s/s]
archive & make_nvp("d_A_f2",d_A_f2); //!< Coefficient 2 of code phase offset model [s/s^2]
archive & make_nvp("b_integrity_status_flag",b_integrity_status_flag);
archive & make_nvp("b_alert_flag",b_alert_flag); //!< If true, indicates that the SV URA may be worse than indicated in d_SV_accuracy, use that SV at our own risk.
archive & make_nvp("b_antispoofing_flag",b_antispoofing_flag); //!< If true, the AntiSpoofing mode is ON in that SV
}
\\brief Compute the ECEF SV coordinates and ECEF velocity
\\http://ec.europa.eu/enterprise/policies/satnav/galileo/open-service/
*/
void satellitePosition(double transmitTime);
double Galileo_System_Time(double WN, double TOW); // Galileo System Time (GST), ICD paragraph 5.1.2
double sv_clock_drift(double transmitTime); //Satellite Time Correction Algorithm, ICD 5.1.4
double sv_clock_relativistic_term(double transmitTime); //Satellite Time Correction Algorithm, ICD 5.1.4
//Default constructor
Galileo_Ephemeris();
};
#endif
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