source: ntrip/trunk/BNC/src/PPP/pppClient.cpp@ 9584

Last change on this file since 9584 was 9584, checked in by stuerze, 2 years ago

update regarding PPP
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1/* -------------------------------------------------------------------------
2 * BKG NTRIP Client
3 * -------------------------------------------------------------------------
4 *
5 * Class: t_pppClient
6 *
7 * Purpose: PPP Client processing starts here
8 *
9 * Author: L. Mervart
10 *
11 * Created: 29-Jul-2014
12 *
13 * Changes:
14 *
15 * -----------------------------------------------------------------------*/
16
17#include <QThreadStorage>
18
19#include <iostream>
20#include <iomanip>
21#include <cmath>
22#include <stdlib.h>
23#include <string.h>
24#include <stdexcept>
25
26#include "pppClient.h"
27#include "pppEphPool.h"
28#include "pppObsPool.h"
29#include "bncconst.h"
30#include "bncutils.h"
31#include "pppStation.h"
32#include "bncantex.h"
33#include "pppFilter.h"
34
35using namespace BNC_PPP;
36using namespace std;
37
38// Global variable holding thread-specific pointers
39//////////////////////////////////////////////////////////////////////////////
40QThreadStorage<t_pppClient*> CLIENTS;
41
42// Static function returning thread-specific pointer
43//////////////////////////////////////////////////////////////////////////////
44t_pppClient* t_pppClient::instance() {
45 return CLIENTS.localData();
46}
47
48// Constructor
49//////////////////////////////////////////////////////////////////////////////
50t_pppClient::t_pppClient(const t_pppOptions* opt) {
51 _output = 0;
52 _opt = new t_pppOptions(*opt);
53 _log = new ostringstream();
54 _ephPool = new t_pppEphPool();
55 _obsPool = new t_pppObsPool();
56 _staRover = new t_pppStation();
57 _filter = new t_pppFilter(_obsPool);
58 _tides = new t_tides();
59 _antex = 0;
60 if (!_opt->_antexFileName.empty()) {
61 _antex = new bncAntex(_opt->_antexFileName.c_str());
62 }
63 if (!_opt->_blqFileName.empty()) {
64 if (_tides->readBlqFile(_opt->_blqFileName.c_str()) == success) {
65 //_tides->printAllBlqSets();
66 }
67 }
68
69 if (_opt->_refSatRequired) {
70 for (unsigned iSys = 0; iSys < _opt->systems().size(); iSys++) {
71 char sys = _opt->systems()[iSys];
72 _refSatMap[sys] = new t_pppRefSat();
73 }
74 }
75
76 _offGR = 0.0;
77 _offGE = 0.0;
78 _offGC = 0.0;
79 CLIENTS.setLocalData(this); // CLIENTS takes ownership over "this"
80}
81
82// Destructor
83//////////////////////////////////////////////////////////////////////////////
84t_pppClient::~t_pppClient() {
85 delete _log;
86 delete _opt;
87 delete _filter;
88 delete _ephPool;
89 delete _obsPool;
90 delete _staRover;
91 if (_antex) {
92 delete _antex;
93 }
94 delete _tides;
95 clearObs();
96 QMapIterator<char, t_pppRefSat*> it(_refSatMap);
97 while (it.hasNext()) {
98 it.next();
99 delete it.value();
100 }
101 _refSatMap.clear();
102}
103
104//
105//////////////////////////////////////////////////////////////////////////////
106void t_pppClient::putEphemeris(const t_eph* eph) {
107 const t_ephGPS* ephGPS = dynamic_cast<const t_ephGPS*>(eph);
108 const t_ephGlo* ephGlo = dynamic_cast<const t_ephGlo*>(eph);
109 const t_ephGal* ephGal = dynamic_cast<const t_ephGal*>(eph);
110 const t_ephBDS* ephBDS = dynamic_cast<const t_ephBDS*>(eph);
111 if (ephGPS) {
112 _ephPool->putEphemeris(new t_ephGPS(*ephGPS));
113 }
114 else if (ephGlo) {
115 _ephPool->putEphemeris(new t_ephGlo(*ephGlo));
116 }
117 else if (ephGal) {
118 _ephPool->putEphemeris(new t_ephGal(*ephGal));
119 }
120 else if (ephBDS) {
121 _ephPool->putEphemeris(new t_ephBDS(*ephBDS));
122 }
123}
124
125//
126//////////////////////////////////////////////////////////////////////////////
127void t_pppClient::putTec(const t_vTec* vTec) {
128 _obsPool->putTec(new t_vTec(*vTec));
129}
130
131//
132//////////////////////////////////////////////////////////////////////////////
133void t_pppClient::putOrbCorrections(const vector<t_orbCorr*>& corr) {
134 for (unsigned ii = 0; ii < corr.size(); ii++) {
135 _ephPool->putOrbCorrection(new t_orbCorr(*corr[ii]));
136 }
137}
138
139//
140//////////////////////////////////////////////////////////////////////////////
141void t_pppClient::putClkCorrections(const vector<t_clkCorr*>& corr) {
142 for (unsigned ii = 0; ii < corr.size(); ii++) {
143 _ephPool->putClkCorrection(new t_clkCorr(*corr[ii]));
144 }
145}
146
147//
148//////////////////////////////////////////////////////////////////////////////
149void t_pppClient::putCodeBiases(const vector<t_satCodeBias*>& biases) {
150 for (unsigned ii = 0; ii < biases.size(); ii++) {
151 _obsPool->putCodeBias(new t_satCodeBias(*biases[ii]));
152 }
153}
154
155//
156//////////////////////////////////////////////////////////////////////////////
157void t_pppClient::putPhaseBiases(const vector<t_satPhaseBias*>& biases) {
158 for (unsigned ii = 0; ii < biases.size(); ii++) {
159 _obsPool->putPhaseBias(new t_satPhaseBias(*biases[ii]));
160 }
161}
162
163//
164//////////////////////////////////////////////////////////////////////////////
165t_irc t_pppClient::prepareObs(const vector<t_satObs*>& satObs,
166 vector<t_pppSatObs*>& obsVector, bncTime& epoTime) {
167
168 // Default
169 // -------
170 epoTime.reset();
171 clearObs();
172
173 // Create vector of valid observations
174 // -----------------------------------
175 for (unsigned ii = 0; ii < satObs.size(); ii++) {
176 char sys = satObs[ii]->_prn.system();
177 if (_opt->useSystem(sys)) {
178 t_pppSatObs* pppSatObs = new t_pppSatObs(*satObs[ii]);
179 if (pppSatObs->isValid()) {
180 obsVector.push_back(pppSatObs);
181 }
182 else {
183 delete pppSatObs;
184 }
185 }
186 }
187
188 // Check whether data are synchronized, compute epoTime
189 // ----------------------------------------------------
190 const double MAXSYNC = 0.05; // synchronization limit
191 double meanDt = 0.0;
192 for (unsigned ii = 0; ii < obsVector.size(); ii++) {
193 const t_pppSatObs* satObs = obsVector.at(ii);
194 if (epoTime.undef()) {
195 epoTime = satObs->time();
196 }
197 else {
198 double dt = satObs->time() - epoTime;
199 if (fabs(dt) > MAXSYNC) {
200 LOG << "t_pppClient::prepareObs asynchronous observations" << endl;
201 return failure;
202 }
203 meanDt += dt;
204 }
205 }
206
207 if (obsVector.size() > 0) {
208 epoTime += meanDt / obsVector.size();
209 }
210
211 return success;
212}
213
214//
215//////////////////////////////////////////////////////////////////////////////
216bool t_pppClient::preparePseudoObs(std::vector<t_pppSatObs*>& obsVector) {
217
218 bool pseudoObsIono = false;
219
220 if (_opt->_pseudoObsIono) {
221 vector<t_pppSatObs*>::iterator it = obsVector.begin();
222 while (it != obsVector.end()) {
223 t_pppSatObs* satObs = *it;
224 char sys = satObs->prn().system();
225 t_pppRefSat* refSat = _refSatMap[sys];
226 double stecRef = refSat->stecValue();
227 if (stecRef && !satObs->isReference()) {
228 pseudoObsIono = true;
229 satObs->setPseudoObsIono(t_frequency::G1, stecRef);
230 }
231 it++;
232 }
233 }
234
235/*
236 vector<t_pppSatObs*>::iterator it = obsVector.begin();
237 while (it != obsVector.end()) {
238 t_pppSatObs* satObs = *it;
239 satObs->printObsMinusComputed();
240 it++;
241 }
242*/
243 return pseudoObsIono;
244}
245
246//
247//////////////////////////////////////////////////////////////////////////////
248void t_pppClient::useObsWithCodeBiasesOnly(std::vector<t_pppSatObs*>& obsVector) {
249
250 vector<t_pppSatObs*>::iterator it = obsVector.begin();
251 while (it != obsVector.end()) {
252 t_pppSatObs* pppSatObs = *it;
253 char sys = pppSatObs->prn().system();
254 bool codeBiasesAvailable = false;
255 t_frequency::type fType1 = t_lc::toFreq(sys,t_lc::c1);
256 t_frequency::type fType2 = t_lc::toFreq(sys,t_lc::c2);
257 if (pppSatObs->getCodeBias(fType1) &&
258 pppSatObs->getCodeBias(fType2)) {
259 codeBiasesAvailable = true;
260 }
261 if (codeBiasesAvailable) {
262 ++it;
263 }
264 else {
265 it = obsVector.erase(it);
266 delete pppSatObs;
267 }
268 }
269
270}
271
272
273// Compute the Bancroft position, check for blunders
274//////////////////////////////////////////////////////////////////////////////
275t_irc t_pppClient::cmpBancroft(const bncTime& epoTime,
276 vector<t_pppSatObs*>& obsVector,
277 ColumnVector& xyzc, bool print) {
278
279 t_lc::type tLC = t_lc::dummy;
280
281 while (true) {
282 Matrix BB(obsVector.size(), 4);
283 int iObs = -1;
284 for (unsigned ii = 0; ii < obsVector.size(); ii++) {
285 const t_pppSatObs* satObs = obsVector.at(ii);
286 if (tLC == t_lc::dummy) {
287 if (satObs->isValid(t_lc::cIF)) {
288 tLC = t_lc::cIF;
289 }
290 else if (satObs->isValid(t_lc::c1)) {
291 tLC = t_lc::c1;
292 }
293 else if (satObs->isValid(t_lc::c2)) {
294 tLC = t_lc::c2;
295 }
296 }
297 if ( satObs->isValid(tLC) && (!satObs->modelSet() || satObs->eleSat() >= _opt->_minEle) ) {
298 ++iObs;
299 BB[iObs][0] = satObs->xc()[0];
300 BB[iObs][1] = satObs->xc()[1];
301 BB[iObs][2] = satObs->xc()[2];
302 BB[iObs][3] = satObs->obsValue(tLC) - satObs->cmpValueForBanc(tLC);
303 }
304 }
305 if (iObs + 1 < _opt->_minObs) {
306 LOG << "t_pppClient::cmpBancroft not enough observations: " << iObs + 1 << endl;
307 return failure;
308 }
309 BB = BB.Rows(1,iObs+1);
310 bancroft(BB, xyzc);
311
312 xyzc[3] /= t_CST::c;
313
314 // Check Blunders
315 // --------------
316 const double BLUNDER = 100.0;
317 double maxRes = 0.0;
318 unsigned maxResIndex = 0;
319 for (unsigned ii = 0; ii < obsVector.size(); ii++) {
320 const t_pppSatObs* satObs = obsVector.at(ii);
321 if (satObs->isValid() &&
322 satObs->prn().system() == 'G' &&
323 (!satObs->modelSet() || satObs->eleSat() >= _opt->_minEle) ) {
324 ColumnVector rr = satObs->xc().Rows(1,3) - xyzc.Rows(1,3);
325 double res = rr.NormFrobenius() - satObs->obsValue(tLC)
326 - (satObs->xc()[3] - xyzc[3]) * t_CST::c;
327 if (std::isnan(res) || fabs(res) > maxRes) {
328 std::isnan(res) ?
329 maxRes = res :
330 maxRes = fabs(res);
331 maxResIndex = ii;
332 }
333 }
334 }
335 if (!std::isnan(maxRes) && maxRes < BLUNDER) {
336 if (print && _numEpoProcessing == 1) {
337 LOG.setf(ios::fixed);
338 LOG << string(epoTime) << " BANCROFT:" << ' '
339 << setw(14) << setprecision(3) << xyzc[0] << ' '
340 << setw(14) << setprecision(3) << xyzc[1] << ' '
341 << setw(14) << setprecision(3) << xyzc[2] << ' '
342 << setw(14) << setprecision(3) << xyzc[3] * t_CST::c << endl << endl;
343 }
344 break;
345 }
346 else {
347 t_pppSatObs* satObs = obsVector.at(maxResIndex);
348 LOG << "t_pppClient::cmpBancroft outlier " << satObs->prn().toString()
349 << " " << maxRes << endl;
350 delete satObs;
351 obsVector.erase(obsVector.begin() + maxResIndex);
352 }
353 }
354
355 return success;
356}
357
358//
359//////////////////////////////////////////////////////////////////////////////
360void t_pppClient::initOutput(t_output* output) {
361 _output = output;
362 _output->_numSat = 0;
363 _output->_hDop = 0.0;
364 _output->_error = false;
365}
366
367//
368//////////////////////////////////////////////////////////////////////////////
369void t_pppClient::clearObs() {
370 for (unsigned ii = 0; ii < _obsRover.size(); ii++) {
371 delete _obsRover.at(ii);
372 }
373 _obsRover.clear();
374}
375
376//
377//////////////////////////////////////////////////////////////////////////////
378void t_pppClient::finish(t_irc irc, int ind) { LOG << "t_pppClient::finish(" << irc << ") " << ind << endl;
379
380 clearObs();
381
382 _output->_epoTime = _epoTimeRover;
383
384 if (irc == success) {
385 _output->_xyzRover[0] = _staRover->xyzApr()[0] + _filter->x()[0];
386 _output->_xyzRover[1] = _staRover->xyzApr()[1] + _filter->x()[1];
387 _output->_xyzRover[2] = _staRover->xyzApr()[2] + _filter->x()[2];
388
389 xyz2neu(_staRover->ellApr().data(), _filter->x().data(), _output->_neu);
390
391 copy(&_filter->Q().data()[0], &_filter->Q().data()[6], _output->_covMatrix);
392
393 _output->_trp0 = t_tropo::delay_saast(_staRover->xyzApr(), M_PI/2.0);
394 _output->_trp = _filter->trp();
395 _output->_trpStdev = _filter->trpStdev();
396
397 _output->_numSat = _filter->numSat();
398 _output->_hDop = _filter->HDOP();
399 _output->_error = false;
400 }
401 else {
402 _output->_error = true;
403 if (OPT->_obsModelType == OPT->DCMcodeBias ||
404 OPT->_obsModelType == OPT->DCMphaseBias) {
405 reset();
406 }
407 }
408 _output->_log = _log->str();
409 delete _log; _log = new ostringstream();
410
411 return;
412}
413
414//
415//////////////////////////////////////////////////////////////////////////////
416t_irc t_pppClient::cmpModel(t_pppStation* station, const ColumnVector& xyzc,
417 vector<t_pppSatObs*>& obsVector) {
418 bncTime time;
419 time = _epoTimeRover;
420 station->setName(_opt->_roverName);
421 station->setAntName(_opt->_antNameRover);
422 station->setEpochTime(time);
423 if (_opt->xyzAprRoverSet()) {
424 station->setXyzApr(_opt->_xyzAprRover);
425 }
426 else {
427 station->setXyzApr(xyzc.Rows(1,3));
428 }
429 station->setNeuEcc(_opt->_neuEccRover);
430
431 // Receiver Clock
432 // --------------
433 station->setDClk(xyzc[3]);
434
435 // Tides
436 // -----
437 station->setTideDsplEarth(_tides->earth(time, station->xyzApr()));
438 station->setTideDsplOcean(_tides->ocean(time, station->xyzApr(), station->name()));
439
440 // Observation model
441 // -----------------
442 vector<t_pppSatObs*>::iterator it = obsVector.begin();
443 while (it != obsVector.end()) {
444 t_pppSatObs* satObs = *it;
445 t_irc modelSetup;
446 if (satObs->isValid()) {
447 modelSetup = satObs->cmpModel(station);
448 }
449 if (satObs->isValid() &&
450 satObs->eleSat() >= _opt->_minEle &&
451 modelSetup == success) {
452 ++it;
453 }
454 else {
455 delete satObs;
456 it = obsVector.erase(it);
457 }
458 }
459
460 return success;
461}
462
463//
464//////////////////////////////////////////////////////////////////////////////
465void t_pppClient::processEpoch(const vector<t_satObs*>& satObs, t_output* output) {
466
467 try {
468 initOutput(output);
469 bool epochReProcessing = false;
470 _numEpoProcessing = 0;
471 _historicalRefSats.clear();
472
473 do {
474 _numEpoProcessing++;
475#ifdef BNC_DEBUG_PPP
476 LOG << "_numEpoProcessing " << _numEpoProcessing << endl;
477#endif
478 if (_obsPool->refSatChanged()) {
479 if(_filter->datumTransformation(_refSatMap) != success) {
480 LOG << "t_pppFilter::datumTransformation() != success" << endl;
481 return finish(failure,1);
482 }
483 else {
484 LOG << "t_pppFilter::datumTransformation() == success" << endl;
485 _filter->rememberState(1);
486 }
487 }
488 // Prepare Observations of the Rover
489 // ---------------------------------
490 if (prepareObs(satObs, _obsRover, _epoTimeRover) != success) {
491 return finish(failure,2);
492 }
493
494 if (_numEpoProcessing == 1) {
495 LOG << "\nPPP of Epoch ";
496 if (!_epoTimeRover.undef()) LOG << string(_epoTimeRover);
497 LOG << "\n---------------------------------------------------------------\n";
498 }
499
500 for (int iter = 1; iter <= 2; iter++) {
501 ColumnVector xyzc(4); xyzc = 0.0;
502 bool print = (iter == 2);
503 if (cmpBancroft(_epoTimeRover, _obsRover, xyzc, print) != success) {
504 return finish(failure,3);
505 }
506 if (cmpModel(_staRover, xyzc, _obsRover) != success) {
507 return finish(failure,4);
508 }
509 }
510
511 if (_opt->_refSatRequired) {
512 if (handleRefSatellites(_obsRover) != success) {
513 return finish(failure,6);
514 }
515 if (_obsPool->refSatChanged()) {
516 LOG << "t_pppFilter: refSatChanged()" << endl;
517 epochReProcessing = true;
518 continue;
519 }
520 }
521
522 // use observations only if satellite code biases are available
523 // ------------------------------------------------------------
524 if (!_opt->_corrMount.empty()) {
525 useObsWithCodeBiasesOnly(_obsRover);
526 }
527
528 if (int(_obsRover.size()) < _opt->_minObs) {
529 LOG << "t_pppClient::processEpoch not enough observations" << endl;
530 return finish(failure,5);
531 }
532
533 // Prepare Pseudo Observations of the Rover
534 // ----------------------------------------
535 _pseudoObsIono = preparePseudoObs(_obsRover);
536
537 // Store last epoch of data
538 // ------------------------
539 _obsPool->putEpoch(_epoTimeRover, _obsRover, _pseudoObsIono, _refSatMap);
540
541 // Process Epoch in Filter
542 // -----------------------
543 if (_filter->processEpoch() != success) {
544 LOG << "filter->processEpoch() != success" << endl;
545 return finish(failure,7);
546 }
547
548 // Epoch re-processing required?
549 // -----------------------------
550 if (_obsPool->refSatChangeRequired() && //SLIP
551 _opt->_obsModelType != t_pppOptions::UncombPPP) {
552 LOG << "pppClient: _obsPool->refSatChangeRequired() " << endl;
553 epochReProcessing = true;
554 _obsPool->deleteLastEpoch();
555 _filter->restoreState(0);
556 setHistoricalRefSats();
557 }
558 else {
559 epochReProcessing = false;
560 if (OPT->_obsModelType == OPT->DCMcodeBias ||
561 OPT->_obsModelType == OPT->DCMphaseBias) {
562 _filter->rememberState(0);
563 }
564 }
565 } while (epochReProcessing);
566
567 }
568 catch (Exception& exc) {
569 LOG << exc.what() << endl;
570 return finish(failure,8);
571 }
572 catch (t_except msg) {
573 LOG << msg.what() << endl;
574 return finish(failure,9);
575 }
576 catch (const char* msg) {
577 LOG << msg << endl;
578 return finish(failure,10);
579 }
580 catch (...) {
581 LOG << "unknown exception" << endl;
582 return finish(failure,11);
583 }
584 return finish(success,12);
585}
586
587//
588////////////////////////////////////////////////////////////////////////////
589double lorentz(const ColumnVector& aa, const ColumnVector& bb) {
590 return aa[0]*bb[0] + aa[1]*bb[1] + aa[2]*bb[2] - aa[3]*bb[3];
591}
592
593//
594////////////////////////////////////////////////////////////////////////////
595void t_pppClient::bancroft(const Matrix& BBpass, ColumnVector& pos) {
596
597 if (pos.Nrows() != 4) {
598 pos.ReSize(4);
599 }
600 pos = 0.0;
601
602 for (int iter = 1; iter <= 2; iter++) {
603 Matrix BB = BBpass;
604 int mm = BB.Nrows();
605 for (int ii = 1; ii <= mm; ii++) {
606 double xx = BB(ii,1);
607 double yy = BB(ii,2);
608 double traveltime = 0.072;
609 if (iter > 1) {
610 double zz = BB(ii,3);
611 double rho = sqrt( (xx-pos(1)) * (xx-pos(1)) +
612 (yy-pos(2)) * (yy-pos(2)) +
613 (zz-pos(3)) * (zz-pos(3)) );
614 traveltime = rho / t_CST::c;
615 }
616 double angle = traveltime * t_CST::omega;
617 double cosa = cos(angle);
618 double sina = sin(angle);
619 BB(ii,1) = cosa * xx + sina * yy;
620 BB(ii,2) = -sina * xx + cosa * yy;
621 }
622
623 Matrix BBB;
624 if (mm > 4) {
625 SymmetricMatrix hlp; hlp << BB.t() * BB;
626 BBB = hlp.i() * BB.t();
627 }
628 else {
629 BBB = BB.i();
630 }
631 ColumnVector ee(mm); ee = 1.0;
632 ColumnVector alpha(mm); alpha = 0.0;
633 for (int ii = 1; ii <= mm; ii++) {
634 alpha(ii) = lorentz(BB.Row(ii).t(),BB.Row(ii).t())/2.0;
635 }
636 ColumnVector BBBe = BBB * ee;
637 ColumnVector BBBalpha = BBB * alpha;
638 double aa = lorentz(BBBe, BBBe);
639 double bb = lorentz(BBBe, BBBalpha)-1;
640 double cc = lorentz(BBBalpha, BBBalpha);
641 double root = sqrt(bb*bb-aa*cc);
642
643 Matrix hlpPos(4,2);
644 hlpPos.Column(1) = (-bb-root)/aa * BBBe + BBBalpha;
645 hlpPos.Column(2) = (-bb+root)/aa * BBBe + BBBalpha;
646
647 ColumnVector omc(2);
648 for (int pp = 1; pp <= 2; pp++) {
649 hlpPos(4,pp) = -hlpPos(4,pp);
650 omc(pp) = BB(1,4) -
651 sqrt( (BB(1,1)-hlpPos(1,pp)) * (BB(1,1)-hlpPos(1,pp)) +
652 (BB(1,2)-hlpPos(2,pp)) * (BB(1,2)-hlpPos(2,pp)) +
653 (BB(1,3)-hlpPos(3,pp)) * (BB(1,3)-hlpPos(3,pp)) ) -
654 hlpPos(4,pp);
655 }
656 if ( fabs(omc(1)) > fabs(omc(2)) ) {
657 pos = hlpPos.Column(2);
658 }
659 else {
660 pos = hlpPos.Column(1);
661 }
662 }
663}
664
665//
666//////////////////////////////////////////////////////////////////////////////
667void t_pppClient::setRefSatellites(std::vector<t_pppSatObs*>& obsVector) {
668 // reference satellite definition per system
669 for (unsigned iSys = 0; iSys < _opt->systems().size(); iSys++) {
670 t_irc refSatReDefinition = success;
671 char sys = _opt->systems()[iSys];
672 bool refSatDefined = false;
673 t_pppRefSat* refSat = _refSatMap[sys];
674 for (unsigned ii = 0; ii < obsVector.size(); ii++) {
675 t_pppSatObs* satObs = obsVector.at(ii);
676 if (satObs->eleSat() < _opt->_minEle) {
677 continue;
678 }
679 // reference satellite is unchanged
680 // ================================
681 if ( !_obsPool->refSatChangeRequired(sys) && refSat->prn() == satObs->prn()) {
682 refSatDefined = true;
683 obsVector[ii]->setAsReference();
684 }
685 // reference satellite has changed
686 // ===============================
687 else if ( _obsPool->refSatChangeRequired(sys) && refSat->prn() != satObs->prn()) {
688 if (satObs->prn().system() == sys) {
689 if (!_historicalRefSats[sys].contains(satObs->prn())) {
690 refSatDefined = true;
691 obsVector[ii]->setAsReference();
692 refSat->setPrn(satObs->prn());
693 }
694 else if ( _historicalRefSats[sys].contains(satObs->prn())) {
695 refSatReDefinition = failure;
696 }
697 }
698 }
699 if (refSatDefined) {
700 if (OPT->_pseudoObsIono) {
701 refSat->setStecValue(satObs->getIonoCodeDelay(t_frequency::G1));
702 }
703 break;
704 }
705 }
706
707 // all available satellites were already tried to use
708 if ((!refSatDefined) && (refSatReDefinition == failure)) {
709 refSat->setPrn(t_prn(sys, 99));
710 _obsPool->setRefSatChangeRequired(sys, false);
711 return;
712 }
713
714 // reference satellite has to be initialized
715 // =========================================
716 if (!refSatDefined) {
717 for (unsigned ii = 0; ii < obsVector.size(); ii++) {
718 t_pppSatObs* satObs = obsVector.at(ii);
719 if (satObs->eleSat() < _opt->_minEle) {
720 continue;
721 }
722 if (satObs->prn().system() == sys &&
723 !_historicalRefSats[sys].contains(satObs->prn())) {
724 obsVector[ii]->setAsReference();
725 refSat->setPrn(satObs->prn());
726 if (OPT->_pseudoObsIono) {
727 refSat->setStecValue(satObs->getIonoCodeDelay(t_frequency::G1));
728 }
729 refSatDefined = true;
730 break;
731 }
732 }
733 }
734
735 // no observations for that system
736 // ===============================
737 if (!refSatDefined) {
738 refSat->setPrn(t_prn());
739 }
740 _obsPool->setRefSatChangeRequired(sys, false); // done or impossible
741 }
742
743 return;
744}
745
746//
747//////////////////////////////////////////////////////////////////////////////
748t_irc t_pppClient::handleRefSatellites(std::vector<t_pppSatObs*>& obsVector) {
749
750 // set refSats in current epoch
751 // ============================
752 setRefSatellites(obsVector); // current epoch
753 LOG.setf(ios::fixed);
754 t_pppObsPool::t_epoch* epoch = _obsPool->lastEpoch();
755 const QMap<char, t_pppRefSat*>& refSatMapLastEpoch = epoch->refSatMap();
756
757 QMapIterator<char, t_pppRefSat*> it(_refSatMap);
758 while (it.hasNext()) {
759 it.next();
760 char sys = it.key();
761 t_prn prn = it.value()->prn();
762 t_prn refSatLastEpochPrn = t_prn();
763 if (epoch) {
764 refSatLastEpochPrn = refSatMapLastEpoch[sys]->prn();
765 }
766 if (prn.number() == 0) { // no obs for that system available
767 continue;
768 }
769 else if (prn.number() == 99) { // refSat re-definition not possible
770 LOG << " => refSat re-definition impossible: " << sys << endl;
771 return failure;
772 }
773 QString str;
774 if (prn == refSatLastEpochPrn || refSatLastEpochPrn == t_prn() ) {
775 _obsPool->setRefSatChanged(sys, false);
776 str = " SET ";
777 }
778 else {
779 _obsPool->setRefSatChanged(sys, true);
780 str = " RESET ";
781 }
782 LOG << string(_epoTimeRover) << str.toStdString() << " REFSAT " << sys << ": " << prn.toString() << endl;
783 }
784 return success;
785}
786
787void t_pppClient::setHistoricalRefSats() {
788 QMapIterator<char, t_pppRefSat*> it(_refSatMap);
789 while (it.hasNext()) {
790 it.next();
791 t_prn prn = it.value()->prn();
792 char sys = prn.system();
793 if (_obsPool->refSatChangeRequired(sys)) {
794 _historicalRefSats[sys].append(prn);
795 }
796 }
797}
798
799//
800//////////////////////////////////////////////////////////////////////////////
801void t_pppClient::reset() {LOG << "t_pppClient::reset()" << endl;
802
803 // to delete old orbit and clock corrections
804 delete _ephPool;
805 _ephPool = new t_pppEphPool();
806
807 // to delete old code biases
808 delete _obsPool;
809 _obsPool = new t_pppObsPool();
810
811 // to delete all parameters
812 delete _filter;
813 _filter = new t_pppFilter(_obsPool);
814
815}
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