| 1 | /* -------------------------------------------------------------------------
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| 2 | * BKG NTRIP Client
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| 3 | * -------------------------------------------------------------------------
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| 4 | *
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| 5 | * Class: t_pppSatObs
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| 6 | *
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| 7 | * Purpose: Satellite observations
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| 8 | *
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| 9 | * Author: L. Mervart
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| 10 | *
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| 11 | * Created: 29-Jul-2014
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| 12 | *
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| 13 | * Changes:
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| 14 | *
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| 15 | * -----------------------------------------------------------------------*/
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| 16 |
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| 17 |
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| 18 | #include <iostream>
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| 19 | #include <iomanip>
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| 20 | #include <cmath>
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| 21 | #include <newmatio.h>
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| 22 |
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| 23 | #include "pppSatObs.h"
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| 24 | #include "bncconst.h"
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| 25 | #include "pppEphPool.h"
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| 26 | #include "pppStation.h"
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| 27 | #include "bncutils.h"
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| 28 | #include "bncantex.h"
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| 29 | #include "pppObsPool.h"
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| 30 | #include "pppClient.h"
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| 31 |
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| 32 | using namespace BNC_PPP;
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| 33 | using namespace std;
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| 34 |
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| 35 | const double GLO_WEIGHT_FACTOR = 1.0;
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| 36 | const double BDS_WEIGHT_FACTOR = 1.0;
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| 37 |
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| 38 | // Constructor
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| 39 | ////////////////////////////////////////////////////////////////////////////
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| 40 | t_pppSatObs::t_pppSatObs(const t_satObs& pppSatObs) {
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| 41 | _prn = pppSatObs._prn;
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| 42 | _time = pppSatObs._time;
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| 43 | _outlier = false;
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| 44 | _valid = true;
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| 45 | _reference = false;
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| 46 | _stecSat = 0.0;
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| 47 | _signalPriorities = QString::fromStdString(OPT->_signalPriorities);
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| 48 | if (!_signalPriorities.size()) {
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| 49 | _signalPriorities = "G:12&CWPSLX R:12&CP E:1&CBX E:5&QIX C:26&IQX";
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| 50 | }
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| 51 |
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| 52 | for (unsigned ii = 0; ii < t_frequency::max; ii++) {
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| 53 | _obs[ii] = 0;
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| 54 | }
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| 55 | prepareObs(pppSatObs);
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| 56 | }
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| 57 |
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| 58 | // Destructor
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| 59 | ////////////////////////////////////////////////////////////////////////////
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| 60 | t_pppSatObs::~t_pppSatObs() {
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| 61 | for (unsigned iFreq = 1; iFreq < t_frequency::max; iFreq++) {
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| 62 | delete _obs[iFreq];
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | //
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| 67 | ////////////////////////////////////////////////////////////////////////////
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| 68 | void t_pppSatObs::prepareObs(const t_satObs& pppSatObs) {
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| 69 |
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| 70 | _model.reset();
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| 71 |
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| 72 | // Select pseudo-ranges and phase observations
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| 73 | // -------------------------------------------
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| 74 | QStringList priorList = _signalPriorities.split(" ", QString::SkipEmptyParts);
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| 75 | string preferredAttrib;
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| 76 | char obsSys = pppSatObs._prn.system(); //cout << "SATELLITE: " << pppSatObs._prn.toString() << endl;
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| 77 | for (unsigned iFreq = 1; iFreq < t_frequency::max; iFreq++) {
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| 78 | t_frequency::type frqType = static_cast<t_frequency::type>(iFreq);
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| 79 | char frqSys = t_frequency::toString(frqType)[0]; //cout << "frqSys: " << frqSys << endl;
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| 80 | char frqNum = t_frequency::toString(frqType)[1]; //cout << "frqNum: " << frqNum << endl;
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| 81 | if (obsSys != frqSys) {
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| 82 | continue;
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| 83 | }
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| 84 | QStringList hlp;
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| 85 | for (int ii = 0; ii < priorList.size(); ii++) {
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| 86 | if (priorList[ii].indexOf(":") != -1) {
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| 87 | hlp = priorList[ii].split(":", QString::SkipEmptyParts);
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| 88 | if (hlp.size() == 2 && hlp[0].length() == 1 && hlp[0][0] == frqSys) {
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| 89 | hlp = hlp[1].split("&", QString::SkipEmptyParts);
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| 90 | }
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| 91 | if (hlp.size() == 2 && hlp[0].indexOf(frqNum) != -1) {
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| 92 | preferredAttrib = hlp[1].toStdString(); //cout << "preferredAttrib: " << preferredAttrib << endl;
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| 93 | }
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| 94 | }
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| 95 | for (unsigned iPref = 0; iPref < preferredAttrib.length(); iPref++) {
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| 96 | QString obsType = QString("%1").arg(frqNum) + preferredAttrib[iPref]; //cout << "obstype: " << obsType.toStdString().c_str() << endl;
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| 97 | if (_obs[iFreq] == 0) {
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| 98 | for (unsigned ii = 0; ii < pppSatObs._obs.size(); ii++) {
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| 99 | const t_frqObs* obs = pppSatObs._obs[ii];
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| 100 | //cout << "observation2char: " << obs->_rnxType2ch << " vs. " << obsType.toStdString().c_str()<< endl;
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| 101 | if (obs->_rnxType2ch == obsType.toStdString() &&
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| 102 | obs->_codeValid && obs->_code &&
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| 103 | obs->_phaseValid && obs->_phase &&
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| 104 | obs->_lockTimeValid && obs->_lockTime > 5.0) {
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| 105 | _obs[iFreq] = new t_frqObs(*obs); //cout << "================> newObs: " << obs->_rnxType2ch <<endl;
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| 106 | }
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| 107 | }
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| 108 | }
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| 109 | }
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| 110 | }
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| 111 | }
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| 112 |
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| 113 | // Used frequency types
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| 114 | // --------------------
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| 115 | _fType1 = t_lc::toFreq(_prn.system(),t_lc::l1);
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| 116 | _fType2 = t_lc::toFreq(_prn.system(),t_lc::l2);
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| 117 |
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| 118 | // Check whether all required frequencies available
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| 119 | // ------------------------------------------------
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| 120 | for (unsigned ii = 0; ii < OPT->LCs(_prn.system()).size(); ii++) {
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| 121 | t_lc::type tLC = OPT->LCs(_prn.system())[ii];
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| 122 | if (tLC == t_lc::GIM) {continue;}
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| 123 | if (!isValid(tLC)) {
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| 124 | _valid = false;
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| 125 | return;
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| 126 | }
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| 127 | }
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| 128 |
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| 129 | // Find GLONASS Channel Number
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| 130 | // ---------------------------
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| 131 | if (_prn.system() == 'R') {
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| 132 | _channel = PPP_CLIENT->ephPool()->getChannel(_prn);
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| 133 | }
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| 134 | else {
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| 135 | _channel = 0;
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| 136 | }
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| 137 |
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| 138 | // Compute Satellite Coordinates at Time of Transmission
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| 139 | // -----------------------------------------------------
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| 140 | _xcSat.ReSize(6); _xcSat = 0.0;
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| 141 | _vvSat.ReSize(3); _vvSat = 0.0;
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| 142 | bool totOK = false;
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| 143 | ColumnVector satPosOld(6); satPosOld = 0.0;
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| 144 | t_lc::type tLC = t_lc::dummy;
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| 145 | if (isValid(t_lc::cIF)) {
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| 146 | tLC = t_lc::cIF;
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| 147 | }
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| 148 | if (tLC == t_lc::dummy && isValid(t_lc::c1)) {
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| 149 | tLC = t_lc::c1;
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| 150 | }
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| 151 | if (tLC == t_lc::dummy && isValid(t_lc::c2)) {
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| 152 | tLC = t_lc::c2;
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| 153 | }
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| 154 | if (tLC == t_lc::dummy) {
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| 155 | _valid = false;
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| 156 | return;
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| 157 | }
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| 158 | double prange = obsValue(tLC);
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| 159 | for (int ii = 1; ii <= 10; ii++) {
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| 160 | bncTime ToT = _time - prange / t_CST::c - _xcSat[3];
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| 161 | if (PPP_CLIENT->ephPool()->getCrd(_prn, ToT, _xcSat, _vvSat) != success) {
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| 162 | _valid = false;
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| 163 | return;
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| 164 | }
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| 165 | ColumnVector dx = _xcSat - satPosOld;
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| 166 | dx[3] *= t_CST::c;
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| 167 | if (dx.NormFrobenius() < 1.e-4) {
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| 168 | totOK = true;
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| 169 | break;
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| 170 | }
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| 171 | satPosOld = _xcSat;
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| 172 | }
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| 173 | if (totOK) {
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| 174 | _signalPropagationTime = prange / t_CST::c - _xcSat[3];
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| 175 | _model._satClkM = _xcSat[3] * t_CST::c;
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| 176 | }
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| 177 | else {
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| 178 | _valid = false;
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| 179 | }
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| 180 | }
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| 181 |
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| 182 | //
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| 183 | ////////////////////////////////////////////////////////////////////////////
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| 184 | void t_pppSatObs::lcCoeff(t_lc::type tLC,
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| 185 | map<t_frequency::type, double>& codeCoeff,
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| 186 | map<t_frequency::type, double>& phaseCoeff,
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| 187 | map<t_frequency::type, double>& ionoCoeff) const {
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| 188 |
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| 189 | codeCoeff.clear();
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| 190 | phaseCoeff.clear();
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| 191 | ionoCoeff.clear();
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| 192 |
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| 193 | double f1 = t_CST::freq(_fType1, _channel);
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| 194 | double f2 = t_CST::freq(_fType2, _channel);
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| 195 | double f1GPS = t_CST::freq(t_frequency::G1, 0);
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| 196 |
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| 197 | switch (tLC) {
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| 198 | case t_lc::l1:
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| 199 | phaseCoeff[_fType1] = 1.0;
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| 200 | ionoCoeff [_fType1] = -1.0 * pow(f1GPS, 2) / pow(f1, 2);
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| 201 | return;
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| 202 | case t_lc::l2:
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| 203 | phaseCoeff[_fType2] = 1.0;
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| 204 | ionoCoeff [_fType2] = -1.0 * pow(f1GPS, 2) / pow(f2, 2);
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| 205 | return;
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| 206 | case t_lc::lIF:
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| 207 | phaseCoeff[_fType1] = f1 * f1 / (f1 * f1 - f2 * f2);
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| 208 | phaseCoeff[_fType2] = -f2 * f2 / (f1 * f1 - f2 * f2);
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| 209 | return;
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| 210 | case t_lc::MW:
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| 211 | phaseCoeff[_fType1] = f1 / (f1 - f2);
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| 212 | phaseCoeff[_fType2] = -f2 / (f1 - f2);
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| 213 | codeCoeff[_fType1] = -f1 / (f1 + f2);
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| 214 | codeCoeff[_fType2] = -f2 / (f1 + f2);
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| 215 | return;
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| 216 | case t_lc::CL:
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| 217 | phaseCoeff[_fType1] = 0.5;
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| 218 | codeCoeff [_fType1] = 0.5;
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| 219 | return;
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| 220 | case t_lc::c1:
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| 221 | codeCoeff[_fType1] = 1.0;
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| 222 | ionoCoeff[_fType1] = pow(f1GPS, 2) / pow(f1, 2);
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| 223 | return;
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| 224 | case t_lc::c2:
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| 225 | codeCoeff[_fType2] = 1.0;
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| 226 | ionoCoeff[_fType2] = pow(f1GPS, 2) / pow(f2, 2);
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| 227 | return;
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| 228 | case t_lc::cIF:
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| 229 | codeCoeff[_fType1] = f1 * f1 / (f1 * f1 - f2 * f2);
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| 230 | codeCoeff[_fType2] = -f2 * f2 / (f1 * f1 - f2 * f2);
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| 231 | return;
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| 232 | case t_lc::GIM:
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| 233 | case t_lc::dummy:
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| 234 | case t_lc::maxLc:
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| 235 | return;
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| 236 | }
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| 237 | }
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| 238 |
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| 239 | //
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| 240 | ////////////////////////////////////////////////////////////////////////////
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| 241 | bool t_pppSatObs::isValid(t_lc::type tLC) const {
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| 242 | bool valid = true;
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| 243 | obsValue(tLC, &valid);
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| 244 |
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| 245 | return valid;
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| 246 | }
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| 247 | //
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| 248 | ////////////////////////////////////////////////////////////////////////////
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| 249 | double t_pppSatObs::obsValue(t_lc::type tLC, bool* valid) const {
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| 250 |
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| 251 | double retVal = 0.0;
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| 252 | if (valid) *valid = true;
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| 253 |
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| 254 | // Pseudo observations
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| 255 | if (tLC == t_lc::GIM) {
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| 256 | if (_stecSat == 0.0) {
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| 257 | if (valid) *valid = false;
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| 258 | return 0.0;
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| 259 | }
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| 260 | else {
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| 261 | return _stecSat;
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| 262 | }
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| 263 | }
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| 264 |
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| 265 | map<t_frequency::type, double> codeCoeff;
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| 266 | map<t_frequency::type, double> phaseCoeff;
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| 267 | map<t_frequency::type, double> ionoCoeff;
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| 268 | lcCoeff(tLC, codeCoeff, phaseCoeff, ionoCoeff);
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| 269 |
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| 270 | map<t_frequency::type, double>::const_iterator it;
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| 271 |
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| 272 | // Code observations
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| 273 | for (it = codeCoeff.begin(); it != codeCoeff.end(); it++) {
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| 274 | t_frequency::type tFreq = it->first;
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| 275 | if (_obs[tFreq] == 0) {
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| 276 | if (valid) *valid = false;
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| 277 | return 0.0;
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| 278 | }
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| 279 | else {
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| 280 | retVal += it->second * _obs[tFreq]->_code;
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| 281 | }
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| 282 | }
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| 283 | // Phase observations
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| 284 | for (it = phaseCoeff.begin(); it != phaseCoeff.end(); it++) {
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| 285 | t_frequency::type tFreq = it->first;
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| 286 | if (_obs[tFreq] == 0) {
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| 287 | if (valid) *valid = false;
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| 288 | return 0.0;
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| 289 | }
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| 290 | else {
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| 291 | retVal += it->second * _obs[tFreq]->_phase * t_CST::lambda(tFreq, _channel);
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| 292 | }
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| 293 | }
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| 294 | return retVal;
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| 295 | }
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| 296 |
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| 297 | //
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| 298 | ////////////////////////////////////////////////////////////////////////////
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| 299 | double t_pppSatObs::lambda(t_lc::type tLC) const {
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| 300 |
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| 301 | double f1 = t_CST::freq(_fType1, _channel);
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| 302 | double f2 = t_CST::freq(_fType2, _channel);
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| 303 |
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| 304 | if (tLC == t_lc::l1) {
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| 305 | return t_CST::c / f1;
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| 306 | }
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| 307 | else if (tLC == t_lc::l2) {
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| 308 | return t_CST::c / f2;
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| 309 | }
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| 310 | else if (tLC == t_lc::lIF) {
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| 311 | return t_CST::c / (f1 + f2);
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| 312 | }
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| 313 | else if (tLC == t_lc::MW) {
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| 314 | return t_CST::c / (f1 - f2);
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| 315 | }
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| 316 | else if (tLC == t_lc::CL) {
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| 317 | return t_CST::c / f1 / 2.0;
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| 318 | }
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| 319 |
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| 320 | return 0.0;
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| 321 | }
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| 322 |
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| 323 | //
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| 324 | ////////////////////////////////////////////////////////////////////////////
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| 325 | double t_pppSatObs::sigma(t_lc::type tLC) const {
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| 326 |
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| 327 | double retVal = 0.0;
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| 328 | map<t_frequency::type, double> codeCoeff;
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| 329 | map<t_frequency::type, double> phaseCoeff;
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| 330 | map<t_frequency::type, double> ionoCoeff;
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| 331 | lcCoeff(tLC, codeCoeff, phaseCoeff, ionoCoeff);
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| 332 |
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| 333 | if (tLC == t_lc::GIM) {
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| 334 | retVal = OPT->_sigmaGIM * OPT->_sigmaGIM;
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| 335 | }
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| 336 |
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| 337 | map<t_frequency::type, double>::const_iterator it;
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| 338 | for (it = codeCoeff.begin(); it != codeCoeff.end(); it++) {
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| 339 | retVal += it->second * it->second * OPT->_sigmaC1 * OPT->_sigmaC1;
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| 340 | }
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| 341 |
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| 342 | for (it = phaseCoeff.begin(); it != phaseCoeff.end(); it++) {
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| 343 | retVal += it->second * it->second * OPT->_sigmaL1 * OPT->_sigmaL1;
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| 344 | }
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| 345 |
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| 346 | retVal = sqrt(retVal);
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| 347 |
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| 348 | // De-Weight GLO+BDS
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| 349 | // -----------------
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| 350 | if (_prn.system() == 'R' && t_lc::includesCode(tLC)) {
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| 351 | retVal *= GLO_WEIGHT_FACTOR;
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| 352 | }
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| 353 | if (_prn.system() == 'C' && t_lc::includesCode(tLC)){
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| 354 | retVal *= BDS_WEIGHT_FACTOR;
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| 355 | }
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| 356 |
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| 357 |
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| 358 | // Elevation-Dependent Weighting
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| 359 | // -----------------------------
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| 360 | double cEle = 1.0;
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| 361 | if ( (OPT->_eleWgtCode && t_lc::includesCode(tLC)) ||
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| 362 | (OPT->_eleWgtPhase && t_lc::includesPhase(tLC)) ) {
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| 363 | double eleD = eleSat()*180.0/M_PI;
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| 364 | double hlp = fabs(90.0 - eleD);
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| 365 | cEle = (1.0 + hlp*hlp*hlp*0.000004);
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| 366 | }
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| 367 |
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| 368 | return cEle * retVal;
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| 369 | }
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| 370 |
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| 371 | //
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| 372 | ////////////////////////////////////////////////////////////////////////////
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| 373 | double t_pppSatObs::maxRes(t_lc::type tLC) const {
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| 374 | double retVal = 0.0;
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| 375 |
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| 376 | map<t_frequency::type, double> codeCoeff;
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| 377 | map<t_frequency::type, double> phaseCoeff;
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| 378 | map<t_frequency::type, double> ionoCoeff;
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| 379 | lcCoeff(tLC, codeCoeff, phaseCoeff, ionoCoeff);
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| 380 |
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| 381 | map<t_frequency::type, double>::const_iterator it;
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| 382 | for (it = codeCoeff.begin(); it != codeCoeff.end(); it++) {
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| 383 | retVal += it->second * it->second * OPT->_maxResC1 * OPT->_maxResC1;
|
|---|
| 384 | }
|
|---|
| 385 | for (it = phaseCoeff.begin(); it != phaseCoeff.end(); it++) {
|
|---|
| 386 | retVal += it->second * it->second * OPT->_maxResL1 * OPT->_maxResL1;
|
|---|
| 387 | }
|
|---|
| 388 | if (tLC == t_lc::GIM) {
|
|---|
| 389 | retVal = OPT->_maxResGIM * OPT->_maxResGIM + OPT->_maxResGIM * OPT->_maxResGIM;
|
|---|
| 390 | }
|
|---|
| 391 |
|
|---|
| 392 | retVal = sqrt(retVal);
|
|---|
| 393 |
|
|---|
| 394 | return retVal;
|
|---|
| 395 | }
|
|---|
| 396 |
|
|---|
| 397 |
|
|---|
| 398 | //
|
|---|
| 399 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 400 | t_irc t_pppSatObs::cmpModel(const t_pppStation* station) {
|
|---|
| 401 |
|
|---|
| 402 | // Reset all model values
|
|---|
| 403 | // ----------------------
|
|---|
| 404 | _model.reset();
|
|---|
| 405 |
|
|---|
| 406 | // Topocentric Satellite Position
|
|---|
| 407 | // ------------------------------
|
|---|
| 408 | ColumnVector rSat = _xcSat.Rows(1,3);
|
|---|
| 409 | ColumnVector rRec = station->xyzApr();
|
|---|
| 410 | ColumnVector rhoV = rSat - rRec;
|
|---|
| 411 | _model._rho = rhoV.NormFrobenius();
|
|---|
| 412 |
|
|---|
| 413 | ColumnVector vSat = _vvSat;
|
|---|
| 414 |
|
|---|
| 415 | ColumnVector neu(3);
|
|---|
| 416 | xyz2neu(station->ellApr().data(), rhoV.data(), neu.data());
|
|---|
| 417 |
|
|---|
| 418 | _model._eleSat = acos(sqrt(neu[0]*neu[0] + neu[1]*neu[1]) / _model._rho);
|
|---|
| 419 | if (neu[2] < 0) {
|
|---|
| 420 | _model._eleSat *= -1.0;
|
|---|
| 421 | }
|
|---|
| 422 | _model._azSat = atan2(neu[1], neu[0]);
|
|---|
| 423 |
|
|---|
| 424 | // Sun unit vector
|
|---|
| 425 | ColumnVector xSun = t_astro::Sun(_time.mjddec());
|
|---|
| 426 | xSun /= xSun.norm_Frobenius();
|
|---|
| 427 |
|
|---|
| 428 | // Satellite unit vectors sz, sy, sx
|
|---|
| 429 | ColumnVector sz = -rSat / rSat.norm_Frobenius();
|
|---|
| 430 | ColumnVector sy = crossproduct(sz, xSun);
|
|---|
| 431 | ColumnVector sx = crossproduct(sy, sz);
|
|---|
| 432 |
|
|---|
| 433 | sx /= sx.norm_Frobenius();
|
|---|
| 434 | sy /= sy.norm_Frobenius();
|
|---|
| 435 |
|
|---|
| 436 | // LOS unit vector satellite --> receiver
|
|---|
| 437 | ColumnVector rho = rRec - rSat;
|
|---|
| 438 | rho /= rho.norm_Frobenius();
|
|---|
| 439 |
|
|---|
| 440 | // LOS vector in satellite frame
|
|---|
| 441 | ColumnVector u(3);
|
|---|
| 442 | u(1) = dotproduct(sx, rho);
|
|---|
| 443 | u(2) = dotproduct(sy, rho);
|
|---|
| 444 | u(3) = dotproduct(sz, rho);
|
|---|
| 445 |
|
|---|
| 446 | // Azimuth and elevation in satellite antenna frame
|
|---|
| 447 | _model._elTx = atan2(u(3),sqrt(pow(u(2),2)+pow(u(1),2)));
|
|---|
| 448 | _model._azTx = atan2(u(2),u(1));
|
|---|
| 449 |
|
|---|
| 450 |
|
|---|
| 451 | // Satellite Clocks
|
|---|
| 452 | // ----------------
|
|---|
| 453 | _model._satClkM = _xcSat[3] * t_CST::c;
|
|---|
| 454 |
|
|---|
| 455 | // Receiver Clocks
|
|---|
| 456 | // ---------------
|
|---|
| 457 | _model._recClkM = station->dClk() * t_CST::c;
|
|---|
| 458 |
|
|---|
| 459 | // Sagnac Effect (correction due to Earth rotation)
|
|---|
| 460 | // ------------------------------------------------
|
|---|
| 461 | ColumnVector Omega(3);
|
|---|
| 462 | Omega[0] = 0.0;
|
|---|
| 463 | Omega[1] = 0.0;
|
|---|
| 464 | Omega[2] = t_CST::omega / t_CST::c;
|
|---|
| 465 | _model._sagnac = DotProduct(Omega, crossproduct(rSat, rRec));
|
|---|
| 466 |
|
|---|
| 467 | // Antenna Eccentricity
|
|---|
| 468 | // --------------------
|
|---|
| 469 | _model._antEcc = -DotProduct(station->xyzEcc(), rhoV) / _model._rho;
|
|---|
| 470 |
|
|---|
| 471 | // Antenna Phase Center Offsets and Variations
|
|---|
| 472 | // -------------------------------------------
|
|---|
| 473 | if (PPP_CLIENT->antex()) {
|
|---|
| 474 | for (unsigned ii = 0; ii < t_frequency::max; ii++) {
|
|---|
| 475 | t_frequency::type frqType = static_cast<t_frequency::type>(ii);
|
|---|
| 476 | string frqStr = t_frequency::toString(frqType);
|
|---|
| 477 | if (frqStr[0] != _prn.system()) {continue;}
|
|---|
| 478 | bool found;
|
|---|
| 479 | QString prn(_prn.toString().c_str());
|
|---|
| 480 | _model._antPCO[ii] = PPP_CLIENT->antex()->rcvCorr(station->antName(), frqType, _model._eleSat, _model._azSat, found);
|
|---|
| 481 | _model._antPCO[ii] += PPP_CLIENT->antex()->satCorr(prn, frqType, _model._elTx, _model._azTx, found);
|
|---|
| 482 | if (OPT->_isAPC && found) {
|
|---|
| 483 | // the PCOs as given in the satellite antenna correction for all frequencies
|
|---|
| 484 | // have to be reduced by the PCO of the respective reference frequency
|
|---|
| 485 | if (_prn.system() == 'G') {
|
|---|
| 486 | _model._antPCO[ii] -= PPP_CLIENT->antex()->satCorr(prn, t_frequency::G1, _model._elTx, _model._azTx, found);
|
|---|
| 487 | }
|
|---|
| 488 | else if (_prn.system() == 'R') {
|
|---|
| 489 | _model._antPCO[ii] -= PPP_CLIENT->antex()->satCorr(prn, t_frequency::R1, _model._elTx, _model._azTx, found);
|
|---|
| 490 | }
|
|---|
| 491 | else if (_prn.system() == 'E') {
|
|---|
| 492 | _model._antPCO[ii] -= PPP_CLIENT->antex()->satCorr(prn, t_frequency::E1, _model._elTx, _model._azTx, found);
|
|---|
| 493 | }
|
|---|
| 494 | else if (_prn.system() == 'C') {
|
|---|
| 495 | _model._antPCO[ii] -= PPP_CLIENT->antex()->satCorr(prn, t_frequency::C2, _model._elTx, _model._azTx, found);
|
|---|
| 496 | }
|
|---|
| 497 | }
|
|---|
| 498 | }
|
|---|
| 499 | }
|
|---|
| 500 |
|
|---|
| 501 | // Tropospheric Delay
|
|---|
| 502 | // ------------------
|
|---|
| 503 | _model._tropo = t_tropo::delay_saast(rRec, _model._eleSat);
|
|---|
| 504 |
|
|---|
| 505 | // Code Biases
|
|---|
| 506 | // -----------
|
|---|
| 507 | const t_satCodeBias* satCodeBias = PPP_CLIENT->obsPool()->satCodeBias(_prn);
|
|---|
| 508 | if (satCodeBias) {
|
|---|
| 509 | for (unsigned ii = 0; ii < satCodeBias->_bias.size(); ii++) {
|
|---|
| 510 | const t_frqCodeBias& bias = satCodeBias->_bias[ii];
|
|---|
| 511 | for (unsigned iFreq = 1; iFreq < t_frequency::max; iFreq++) {
|
|---|
| 512 | string frqStr = t_frequency::toString(t_frequency::type(iFreq));
|
|---|
| 513 | if (frqStr[0] != _prn.system()) {
|
|---|
| 514 | continue;
|
|---|
| 515 | }
|
|---|
| 516 | const t_frqObs* obs = _obs[iFreq];
|
|---|
| 517 | if (obs && obs->_rnxType2ch == bias._rnxType2ch) {
|
|---|
| 518 | _model._codeBias[iFreq] = bias._value;
|
|---|
| 519 | }
|
|---|
| 520 | }
|
|---|
| 521 | }
|
|---|
| 522 | }
|
|---|
| 523 |
|
|---|
| 524 | // Phase Biases
|
|---|
| 525 | // -----------
|
|---|
| 526 | const t_satPhaseBias* satPhaseBias = PPP_CLIENT->obsPool()->satPhaseBias(_prn);
|
|---|
| 527 | double yaw = 0.0;
|
|---|
| 528 | bool ssr = false;
|
|---|
| 529 | if (satPhaseBias) {
|
|---|
| 530 | double dt = station->epochTime() - satPhaseBias->_time;
|
|---|
| 531 | if (satPhaseBias->_updateInt) {
|
|---|
| 532 | dt -= (0.5 * ssrUpdateInt[satPhaseBias->_updateInt]);
|
|---|
| 533 | }
|
|---|
| 534 | yaw = satPhaseBias->_yaw + satPhaseBias->_yawRate * dt;
|
|---|
| 535 | ssr = true;
|
|---|
| 536 | for (unsigned ii = 0; ii < satPhaseBias->_bias.size(); ii++) {
|
|---|
| 537 | const t_frqPhaseBias& bias = satPhaseBias->_bias[ii];
|
|---|
| 538 | for (unsigned iFreq = 1; iFreq < t_frequency::max; iFreq++) {
|
|---|
| 539 | string frqStr = t_frequency::toString(t_frequency::type(iFreq));
|
|---|
| 540 | if (frqStr[0] != _prn.system()) {
|
|---|
| 541 | continue;
|
|---|
| 542 | }
|
|---|
| 543 | const t_frqObs* obs = _obs[iFreq];
|
|---|
| 544 | if (obs && obs->_rnxType2ch == bias._rnxType2ch) {
|
|---|
| 545 | _model._phaseBias[iFreq] = bias._value;
|
|---|
| 546 | }
|
|---|
| 547 | }
|
|---|
| 548 | }
|
|---|
| 549 | }
|
|---|
| 550 |
|
|---|
| 551 | // Phase Wind-Up
|
|---|
| 552 | // -------------
|
|---|
| 553 | _model._windUp = station->windUp(_time, _prn, rSat, ssr, yaw, vSat) ;
|
|---|
| 554 |
|
|---|
| 555 | // Relativistic effect due to earth gravity
|
|---|
| 556 | // ----------------------------------------
|
|---|
| 557 | double a = rSat.NormFrobenius() + rRec.NormFrobenius();
|
|---|
| 558 | double b = (rSat - rRec).NormFrobenius();
|
|---|
| 559 | double gm = 3.986004418e14; // m3/s2
|
|---|
| 560 | _model._rel = 2 * gm / t_CST::c / t_CST::c * log((a + b) / (a - b));
|
|---|
| 561 |
|
|---|
| 562 | // Tidal Correction
|
|---|
| 563 | // ----------------
|
|---|
| 564 | _model._tideEarth = -DotProduct(station->tideDsplEarth(), rhoV) / _model._rho;
|
|---|
| 565 | _model._tideOcean = -DotProduct(station->tideDsplOcean(), rhoV) / _model._rho;
|
|---|
| 566 |
|
|---|
| 567 | // Ionospheric Delay
|
|---|
| 568 | // -----------------
|
|---|
| 569 | const t_vTec* vTec = PPP_CLIENT->obsPool()->vTec();
|
|---|
| 570 | bool vTecUsage = true;
|
|---|
| 571 | for (unsigned ii = 0; ii < OPT->LCs(_prn.system()).size(); ii++) {
|
|---|
| 572 | t_lc::type tLC = OPT->LCs(_prn.system())[ii];
|
|---|
| 573 | if (tLC == t_lc::cIF || tLC == t_lc::lIF) {
|
|---|
| 574 | vTecUsage = false;
|
|---|
| 575 | }
|
|---|
| 576 | }
|
|---|
| 577 |
|
|---|
| 578 | if (vTecUsage && vTec) {
|
|---|
| 579 | double stec = station->stec(vTec, _signalPropagationTime, rSat);
|
|---|
| 580 | double f1GPS = t_CST::freq(t_frequency::G1, 0);
|
|---|
| 581 | for (unsigned iFreq = 1; iFreq < t_frequency::max; iFreq++) {
|
|---|
| 582 | if (OPT->_pseudoObsIono) {
|
|---|
| 583 | // For scaling the slant ionospheric delays the trick is to be consistent with units!
|
|---|
| 584 | // The conversion of TECU into meters requires the frequency of the signal.
|
|---|
| 585 | // Hence, GPS L1 frequency is used for all systems. The same is true for mu_i in lcCoeff().
|
|---|
| 586 | _model._ionoCodeDelay[iFreq] = 40.3E16 / pow(f1GPS, 2) * stec;
|
|---|
| 587 | }
|
|---|
| 588 | else { // PPP-RTK
|
|---|
| 589 | t_frequency::type frqType = static_cast<t_frequency::type>(iFreq);
|
|---|
| 590 | _model._ionoCodeDelay[iFreq] = 40.3E16 / pow(t_CST::freq(frqType, _channel), 2) * stec;
|
|---|
| 591 | }
|
|---|
| 592 | }
|
|---|
| 593 | }
|
|---|
| 594 |
|
|---|
| 595 | // Set Model Set Flag
|
|---|
| 596 | // ------------------
|
|---|
| 597 | _model._set = true;
|
|---|
| 598 |
|
|---|
| 599 | //printModel();
|
|---|
| 600 |
|
|---|
| 601 | return success;
|
|---|
| 602 | }
|
|---|
| 603 |
|
|---|
| 604 | //
|
|---|
| 605 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 606 | void t_pppSatObs::printModel() const {
|
|---|
| 607 |
|
|---|
| 608 | LOG.setf(ios::fixed);
|
|---|
| 609 | LOG << "\nMODEL for Satellite " << _prn.toString() << (isReference() ? " (Reference Satellite)" : "")
|
|---|
| 610 |
|
|---|
| 611 | << "\n======================= " << endl
|
|---|
| 612 | << "PPP STRATEGY : " << OPT->_obsmodelTypeStr.at((int)OPT->_obsModelType).toLocal8Bit().constData()
|
|---|
| 613 | << ((OPT->_pseudoObsIono) ? " with pseudo-observations for STEC" : "") << endl
|
|---|
| 614 | << "RHO : " << setw(12) << setprecision(3) << _model._rho << endl
|
|---|
| 615 | << "ELE : " << setw(12) << setprecision(3) << _model._eleSat * RHO_DEG << endl
|
|---|
| 616 | << "AZI : " << setw(12) << setprecision(3) << _model._azSat * RHO_DEG << endl
|
|---|
| 617 | << "SATCLK : " << setw(12) << setprecision(3) << _model._satClkM << endl
|
|---|
| 618 | << "RECCLK : " << setw(12) << setprecision(3) << _model._recClkM << endl
|
|---|
| 619 | << "SAGNAC : " << setw(12) << setprecision(3) << _model._sagnac << endl
|
|---|
| 620 | << "ANTECC : " << setw(12) << setprecision(3) << _model._antEcc << endl
|
|---|
| 621 | << "TROPO : " << setw(12) << setprecision(3) << _model._tropo << endl
|
|---|
| 622 | << "WINDUP : " << setw(12) << setprecision(3) << _model._windUp << endl
|
|---|
| 623 | << "REL : " << setw(12) << setprecision(3) << _model._rel << endl
|
|---|
| 624 | << "EARTH TIDES : " << setw(12) << setprecision(3) << _model._tideEarth << endl
|
|---|
| 625 | << "OCEAN TIDES : " << setw(12) << setprecision(3) << _model._tideOcean << endl
|
|---|
| 626 | << endl
|
|---|
| 627 | << "FREQUENCY DEPENDENT CORRECTIONS:" << endl
|
|---|
| 628 | << "-------------------------------" << endl;
|
|---|
| 629 | for (unsigned iFreq = 1; iFreq < t_frequency::max; iFreq++) {
|
|---|
| 630 | if (_obs[iFreq]) {
|
|---|
| 631 | string frqStr = t_frequency::toString(t_frequency::type(iFreq));
|
|---|
| 632 | if (_prn.system() == frqStr[0]) {
|
|---|
| 633 | LOG << "PCO : " << frqStr << setw(12) << setprecision(3) << _model._antPCO[iFreq] << endl
|
|---|
| 634 | << "BIAS CODE : " << frqStr << setw(12) << setprecision(3) << _model._codeBias[iFreq] << "\t(" << _obs[iFreq]->_rnxType2ch[1] << ") " << endl
|
|---|
| 635 | << "BIAS PHASE : " << frqStr << setw(12) << setprecision(3) << _model._phaseBias[iFreq] << "\t(" << _obs[iFreq]->_rnxType2ch[1] << ") " << endl
|
|---|
| 636 | << "IONO CODEDELAY: " << frqStr << setw(12) << setprecision(3) << _model._ionoCodeDelay[iFreq]<< endl;
|
|---|
| 637 | }
|
|---|
| 638 | }
|
|---|
| 639 | }
|
|---|
| 640 | }
|
|---|
| 641 |
|
|---|
| 642 | //
|
|---|
| 643 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 644 | void t_pppSatObs::printObsMinusComputed() const {
|
|---|
| 645 | // TODO: cout should be LOG
|
|---|
| 646 | LOG.setf(ios::fixed);
|
|---|
| 647 | LOG << "\nOBS-COMP for Satellite " << _prn.toString() << (isReference() ? " (Reference Satellite)" : "") << endl
|
|---|
| 648 | << "========================== " << endl;
|
|---|
| 649 | for (unsigned ii = 0; ii < OPT->LCs(_prn.system()).size(); ii++) {
|
|---|
| 650 | t_lc::type tLC = OPT->LCs(_prn.system())[ii];
|
|---|
| 651 | LOG << "OBS-CMP " << setw(4) << t_lc::toString(tLC) << ": " << _prn.toString() << " "
|
|---|
| 652 | << setw(12) << setprecision(3) << obsValue(tLC) << " "
|
|---|
| 653 | << setw(12) << setprecision(3) << cmpValue(tLC) << " "
|
|---|
| 654 | << setw(12) << setprecision(3) << obsValue(tLC) - cmpValue(tLC) << endl;
|
|---|
| 655 | }
|
|---|
| 656 | }
|
|---|
| 657 |
|
|---|
| 658 | //
|
|---|
| 659 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 660 | double t_pppSatObs::cmpValueForBanc(t_lc::type tLC) const {
|
|---|
| 661 | return cmpValue(tLC) - _model._rho - _model._sagnac - _model._recClkM;
|
|---|
| 662 | }
|
|---|
| 663 |
|
|---|
| 664 | //
|
|---|
| 665 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 666 | double t_pppSatObs::cmpValue(t_lc::type tLC) const {
|
|---|
| 667 | double cmpValue;
|
|---|
| 668 |
|
|---|
| 669 | if (!isValid(tLC)) {
|
|---|
| 670 | cmpValue = 0.0;
|
|---|
| 671 | }
|
|---|
| 672 | else if (tLC == t_lc::GIM) {
|
|---|
| 673 | cmpValue = _stecSat;
|
|---|
| 674 | }
|
|---|
| 675 | else {
|
|---|
| 676 | // Non-Dispersive Part
|
|---|
| 677 | // -------------------
|
|---|
| 678 | double nonDisp = _model._rho
|
|---|
| 679 | + _model._recClkM - _model._satClkM
|
|---|
| 680 | + _model._sagnac + _model._antEcc + _model._tropo
|
|---|
| 681 | + _model._tideEarth + _model._tideOcean + _model._rel;
|
|---|
| 682 |
|
|---|
| 683 | // Add Dispersive Part
|
|---|
| 684 | // -------------------
|
|---|
| 685 | double dispPart = 0.0;
|
|---|
| 686 | map<t_frequency::type, double> codeCoeff;
|
|---|
| 687 | map<t_frequency::type, double> phaseCoeff;
|
|---|
| 688 | map<t_frequency::type, double> ionoCoeff;
|
|---|
| 689 | lcCoeff(tLC, codeCoeff, phaseCoeff, ionoCoeff);
|
|---|
| 690 | map<t_frequency::type, double>::const_iterator it;
|
|---|
| 691 | for (it = codeCoeff.begin(); it != codeCoeff.end(); it++) {
|
|---|
| 692 | t_frequency::type tFreq = it->first;
|
|---|
| 693 | dispPart += it->second * (_model._antPCO[tFreq] - _model._codeBias[tFreq]);
|
|---|
| 694 | if (OPT->PPPRTK) {
|
|---|
| 695 | dispPart += it->second * (_model._ionoCodeDelay[tFreq]);
|
|---|
| 696 | }
|
|---|
| 697 | }
|
|---|
| 698 | for (it = phaseCoeff.begin(); it != phaseCoeff.end(); it++) {
|
|---|
| 699 | t_frequency::type tFreq = it->first;
|
|---|
| 700 | dispPart += it->second * (_model._antPCO[tFreq] - _model._phaseBias[tFreq] +
|
|---|
| 701 | _model._windUp * t_CST::lambda(tFreq, _channel));
|
|---|
| 702 | if (OPT->PPPRTK) {
|
|---|
| 703 | dispPart += it->second * (- _model._ionoCodeDelay[tFreq]);
|
|---|
| 704 | }
|
|---|
| 705 | }
|
|---|
| 706 | cmpValue = nonDisp + dispPart;
|
|---|
| 707 | }
|
|---|
| 708 |
|
|---|
| 709 | return cmpValue;
|
|---|
| 710 | }
|
|---|
| 711 |
|
|---|
| 712 | //
|
|---|
| 713 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 714 | void t_pppSatObs::setRes(t_lc::type tLC, double res) {
|
|---|
| 715 | _res[tLC] = res;
|
|---|
| 716 | }
|
|---|
| 717 |
|
|---|
| 718 | //
|
|---|
| 719 | ////////////////////////////////////////////////////////////////////////////
|
|---|
| 720 | double t_pppSatObs::getRes(t_lc::type tLC) const {
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| 721 | map<t_lc::type, double>::const_iterator it = _res.find(tLC);
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| 722 | if (it != _res.end()) {
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| 723 | return it->second;
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| 724 | }
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| 725 | else {
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| 726 | return 0.0;
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| 727 | }
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| 728 | }
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| 729 |
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| 730 | //
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| 731 | ////////////////////////////////////////////////////////////////////////////
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| 732 | bool t_pppSatObs::setPseudoObsIono(t_frequency::type freq) {
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| 733 | bool pseudoObsIono = false;
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| 734 | _stecSat = _model._ionoCodeDelay[freq];
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| 735 | if (_stecSat) {
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| 736 | pseudoObsIono = true;
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| 737 | }
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| 738 | return pseudoObsIono;
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| 739 | }
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