GNSS-SDR 0.0.21
An Open Source GNSS Software Defined Receiver
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serdes_gps_eph.h
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1/*!
2 * \file serdes_gps_eph.h
3 * \brief Serialization / Deserialization of Gps_Ephemeris objects using
4 * Protocol Buffers
5 * \author Javier Arribas, 2021. jarribas(at)cttc.es
6 *
7 * -----------------------------------------------------------------------------
8 *
9 * GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
10 * This file is part of GNSS-SDR.
11 *
12 * Copyright (C) 2010-2021 (see AUTHORS file for a list of contributors)
13 * SPDX-License-Identifier: GPL-3.0-or-later
14 *
15 * -----------------------------------------------------------------------------
16 */
17
18#ifndef GNSS_SDR_SERDES_GPS_EPH_H
19#define GNSS_SDR_SERDES_GPS_EPH_H
20
21#include "gps_ephemeris.h"
22#include "gps_ephemeris.pb.h" // file created by Protocol Buffers at compile time
23#include <memory>
24#include <string>
25#include <utility>
26
27/** \addtogroup PVT
28 * \{ */
29/** \addtogroup PVT_libs
30 * \{ */
31
32/*!
33 * \brief This class implements serialization and deserialization of
34 * Gps_Ephemeris objects using Protocol Buffers.
35 */
36class Serdes_Gps_Eph
37{
38public:
39 Serdes_Gps_Eph()
40 {
41 // Verify that the version of the library that we linked against is
42 // compatible with the version of the headers we compiled against.
43 GOOGLE_PROTOBUF_VERIFY_VERSION;
44 }
45
46 ~Serdes_Gps_Eph()
47 {
48 // google::protobuf::ShutdownProtobufLibrary();
49 }
50
51 inline Serdes_Gps_Eph(const Serdes_Gps_Eph& other) noexcept : monitor_(other.monitor_) //!< Copy constructor
52 {
53 }
54
55 inline Serdes_Gps_Eph& operator=(const Serdes_Gps_Eph& rhs) noexcept //!< Copy assignment operator
56 {
57 Serdes_Gps_Eph temp(rhs);
58 std::swap(this->monitor_, temp.monitor_);
59 return *this;
60 }
61
62 inline Serdes_Gps_Eph(Serdes_Gps_Eph&& other) noexcept : monitor_(std::move(other.monitor_)) //!< Move constructor
63 {
64 }
65
66 inline Serdes_Gps_Eph& operator=(Serdes_Gps_Eph&& other) noexcept //!< Move assignment operator
67 {
68 std::swap(this->monitor_, other.monitor_);
69 return *this;
70 }
71
72 inline std::string createProtobuffer(const std::shared_ptr<Gps_Ephemeris> monitor) //!< Serialization into a string
73 {
74 monitor_.Clear();
75 std::string data;
76
77 monitor_.set_prn(monitor->PRN);
78 monitor_.set_m_0(monitor->M_0);
79 monitor_.set_delta_n(monitor->delta_n);
80 monitor_.set_ecc(monitor->ecc);
81 monitor_.set_sqrta(monitor->sqrtA);
82 monitor_.set_omega_0(monitor->OMEGA_0);
83 monitor_.set_i_0(monitor->i_0);
84 monitor_.set_omega(monitor->omega);
85 monitor_.set_omegadot(monitor->OMEGAdot);
86 monitor_.set_idot(monitor->idot);
87 monitor_.set_cuc(monitor->Cuc);
88 monitor_.set_cus(monitor->Cus);
89 monitor_.set_crc(monitor->Crc);
90 monitor_.set_crs(monitor->Crs);
91 monitor_.set_cic(monitor->Cic);
92 monitor_.set_cis(monitor->Cis);
93 monitor_.set_toe(monitor->toe);
94 monitor_.set_toc(monitor->toc);
95 monitor_.set_af0(monitor->af0);
96 monitor_.set_af1(monitor->af1);
97 monitor_.set_af2(monitor->af2);
98 monitor_.set_satclkdrift(monitor->satClkDrift);
99 monitor_.set_dtr(monitor->dtr);
100 monitor_.set_wn(monitor->WN);
101 monitor_.set_tow(monitor->tow);
102
103 // GPS-specific parameters
104 monitor_.set_code_on_l2(monitor->code_on_L2);
105 monitor_.set_l2_p_data_flag(monitor->L2_P_data_flag);
106 monitor_.set_sv_accuracy(monitor->SV_accuracy);
107 monitor_.set_sv_health(monitor->SV_health);
108 monitor_.set_tgd(monitor->TGD);
109 monitor_.set_iodc(monitor->IODC);
110 monitor_.set_iode_sf2(monitor->IODE_SF2);
111 monitor_.set_iode_sf3(monitor->IODE_SF3);
112 monitor_.set_aodo(monitor->AODO);
113 monitor_.set_fit_interval_flag(monitor->fit_interval_flag);
114 monitor_.set_spare1(monitor->spare1);
115 monitor_.set_spare2(monitor->spare2);
116 monitor_.set_integrity_status_flag(monitor->integrity_status_flag);
117 monitor_.set_alert_flag(monitor->alert_flag);
118 monitor_.set_antispoofing_flag(monitor->antispoofing_flag);
119
120 monitor_.SerializeToString(&data);
121 return data;
122 }
123
124 inline Gps_Ephemeris readProtobuffer(const gnss_sdr::GpsEphemeris& mon) const //!< Deserialization
125 {
126 Gps_Ephemeris monitor;
127
128 monitor.PRN = mon.prn();
129 monitor.M_0 = mon.m_0();
130 monitor.delta_n = mon.delta_n();
131 monitor.ecc = mon.ecc();
132 monitor.sqrtA = mon.sqrta();
133 monitor.OMEGA_0 = mon.omega_0();
134 monitor.i_0 = mon.i_0();
135 monitor.omega = mon.omega();
136 monitor.OMEGAdot = mon.omegadot();
137 monitor.idot = mon.idot();
138 monitor.Cuc = mon.cuc();
139 monitor.Cus = mon.cus();
140 monitor.Crc = mon.crc();
141 monitor.Crs = mon.crs();
142 monitor.Cic = mon.cic();
143 monitor.Cis = mon.cis();
144 monitor.toe = mon.toe();
145 monitor.toc = mon.toc();
146 monitor.af0 = mon.af0();
147 monitor.af1 = mon.af1();
148 monitor.af2 = mon.af2();
149 monitor.satClkDrift = mon.satclkdrift();
150 monitor.dtr = mon.dtr();
151 monitor.WN = mon.wn();
152 monitor.tow = mon.tow();
153
154 // GPS-specific parameters
155 monitor.code_on_L2 = mon.code_on_l2();
156 monitor.L2_P_data_flag = mon.l2_p_data_flag();
157 monitor.SV_accuracy = mon.sv_accuracy();
158 monitor.SV_health = mon.sv_health();
159 monitor.TGD = mon.tgd();
160 monitor.IODC = mon.iodc();
161 monitor.IODE_SF2 = mon.iode_sf2();
162 monitor.IODE_SF3 = mon.iode_sf3();
163 monitor.AODO = mon.aodo();
164 monitor.fit_interval_flag = mon.fit_interval_flag();
165 monitor.spare1 = mon.spare1();
166 monitor.spare2 = mon.spare2();
167 monitor.integrity_status_flag = mon.integrity_status_flag();
168 monitor.alert_flag = mon.alert_flag();
169 monitor.antispoofing_flag = mon.antispoofing_flag();
170
171 return monitor;
172 }
173
174private:
175 gnss_sdr::GpsEphemeris monitor_{};
176};
177
178
179/** \} */
180/** \} */
181#endif // GNSS_SDR_SERDES_GPS_EPH_H
double OMEGA_0
Longitude of ascending node of orbital plane at weekly epoch [rad].
double sqrtA
Square root of the semi-major axis [meters^1/2].
double M_0
Mean anomaly at reference time [rad].
double af0
SV clock bias correction coefficient [s].
double Crc
Amplitude of the cosine harmonic correction term to the orbit radius [meters].
double Crs
Amplitude of the sine harmonic correction term to the orbit radius [meters].
double Cus
Amplitude of the sine harmonic correction term to the argument of latitude [rad].
double Cis
Amplitude of the sine harmonic correction term to the angle of inclination [rad].
double idot
Rate of inclination angle [rad/sec].
double i_0
Inclination angle at reference time [rad].
double OMEGAdot
Rate of right ascension [rad/sec].
double delta_n
Mean motion difference from computed value [rad/sec].
double ecc
Eccentricity.
double satClkDrift
SV clock drift.
double dtr
Relativistic clock correction term.
double af1
SV clock drift correction coefficient [s/s].
double af2
SV clock drift rate correction coefficient [s/s^2].
uint32_t PRN
SV ID.
double Cuc
Amplitude of the cosine harmonic correction term to the argument of latitude [rad].
double Cic
Amplitude of the cosine harmonic correction term to the angle of inclination [rad].
int32_t tow
Time of Week.
double omega
Argument of perigee [rad].
int32_t toe
Ephemeris reference time [s].
int32_t toc
Clock correction data reference Time of Week [sec].
int32_t WN
Week number.
This class is a storage and orbital model functions for the GPS SV ephemeris data as described in IS-...
bool L2_P_data_flag
When true, indicates that the NAV data stream was commanded OFF on the P-code of the L2 channel.
int32_t code_on_L2
If 1, P code ON in L2; if 2, C/A code ON in L2;.
int32_t IODC
Issue of Data, Clock.
bool alert_flag
If true, indicates that the SV URA may be worse than indicated in d_SV_accuracy, use that SV at our o...
int32_t SV_accuracy
User Range Accuracy (URA) index of the SV (reference paragraph 6.2.1) for the standard positioning se...
int32_t SV_health
Satellite heath status.
bool fit_interval_flag
indicates the curve-fit interval used by the CS (Block II/IIA/IIR/IIR-M/IIF) and SS (Block IIIA) in d...
int32_t IODE_SF2
Issue of Data, Ephemeris (IODE), subframe 2.
int32_t AODO
Age of Data Offset (AODO) term for the navigation message correction table (NMCT) contained in subfra...
bool integrity_status_flag
If true, enhanced level of integrity assurance.
bool antispoofing_flag
If true, the AntiSpoofing mode is ON in that SV.
int32_t IODE_SF3
Issue of Data, Ephemeris (IODE), subframe 3.
double TGD
Estimated Group Delay Differential: L1-L2 correction term only for the benefit of "L1 P(Y)" or "L2 P(...
This class implements serialization and deserialization of Gps_Ephemeris objects using Protocol Buffe...
Serdes_Gps_Eph & operator=(Serdes_Gps_Eph &&other) noexcept
< Move assignment operator
Gps_Ephemeris readProtobuffer(const gnss_sdr::GpsEphemeris &mon) const
< Deserialization
Serdes_Gps_Eph & operator=(const Serdes_Gps_Eph &rhs) noexcept
< Copy assignment operator
std::string createProtobuffer(const std::shared_ptr< Gps_Ephemeris > monitor)
Interface of a GPS EPHEMERIS storage.