1 | // Part of BNC, a utility for retrieving decoding and
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2 | // converting GNSS data streams from NTRIP broadcasters.
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3 | //
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4 | // Copyright (C) 2007
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5 | // German Federal Agency for Cartography and Geodesy (BKG)
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6 | // http://www.bkg.bund.de
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7 | // Czech Technical University Prague, Department of Geodesy
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8 | // http://www.fsv.cvut.cz
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9 | //
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10 | // Email: euref-ip@bkg.bund.de
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11 | //
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12 | // This program is free software; you can redistribute it and/or
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13 | // modify it under the terms of the GNU General Public License
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14 | // as published by the Free Software Foundation, version 2.
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15 | //
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16 | // This program is distributed in the hope that it will be useful,
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17 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 | // GNU General Public License for more details.
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20 | //
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21 | // You should have received a copy of the GNU General Public License
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22 | // along with this program; if not, write to the Free Software
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23 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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24 |
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25 | /* -------------------------------------------------------------------------
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26 | * BKG NTRIP Client
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27 | * -------------------------------------------------------------------------
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28 | *
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29 | * Class: bncParam, bncModel
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30 | *
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31 | * Purpose: Model for PPP
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32 | *
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33 | * Author: L. Mervart
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34 | *
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35 | * Created: 01-Dec-2009
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36 | *
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37 | * Changes:
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38 | *
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39 | * -----------------------------------------------------------------------*/
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40 |
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41 | #include <iomanip>
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42 | #include <cmath>
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43 | #include <newmatio.h>
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44 | #include <sstream>
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45 |
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46 | #include "bncmodel.h"
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47 | #include "bncapp.h"
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48 | #include "bncpppclient.h"
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49 | #include "bancroft.h"
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50 | #include "bncutils.h"
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51 | #include "bncsettings.h"
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52 |
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53 | using namespace std;
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54 |
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55 | const unsigned MINOBS = 4;
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56 | const double MINELE = 10.0 * M_PI / 180.0;
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57 | const double MAXRES_CODE = 10.0;
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58 | const double MAXRES_PHASE = 0.10;
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59 | const double sig_crd_0 = 100.0;
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60 | const double sig_crd_p = 100.0;
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61 | const double sig_clk_0 = 1000.0;
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62 | const double sig_trp_0 = 0.01;
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63 | const double sig_trp_p = 1e-6;
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64 | const double sig_amb_0 = 100.0;
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65 | const double sig_P3 = 1.0;
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66 | const double sig_L3 = 0.01;
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67 |
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68 | // Constructor
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69 | ////////////////////////////////////////////////////////////////////////////
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70 | bncParam::bncParam(bncParam::parType typeIn, int indexIn,
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71 | const QString& prnIn) {
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72 | type = typeIn;
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73 | index = indexIn;
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74 | prn = prnIn;
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75 | index_old = 0;
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76 | xx = 0.0;
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77 | }
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78 |
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79 | // Destructor
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80 | ////////////////////////////////////////////////////////////////////////////
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81 | bncParam::~bncParam() {
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82 | }
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83 |
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84 | // Partial
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85 | ////////////////////////////////////////////////////////////////////////////
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86 | double bncParam::partial(t_satData* satData, const QString& prnIn) {
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87 | if (type == CRD_X) {
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88 | return (xx - satData->xx(1)) / satData->rho;
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89 | }
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90 | else if (type == CRD_Y) {
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91 | return (xx - satData->xx(2)) / satData->rho;
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92 | }
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93 | else if (type == CRD_Z) {
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94 | return (xx - satData->xx(3)) / satData->rho;
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95 | }
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96 | else if (type == RECCLK) {
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97 | return 1.0;
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98 | }
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99 | else if (type == TROPO) {
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100 | return 1.0 / sin(satData->eleSat);
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101 | }
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102 | else if (type == AMB_L3) {
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103 | if (prnIn == prn) {
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104 | return 1.0;
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105 | }
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106 | else {
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107 | return 0.0;
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108 | }
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109 | }
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110 | return 0.0;
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111 | }
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112 |
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113 | // Constructor
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114 | ////////////////////////////////////////////////////////////////////////////
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115 | bncModel::bncModel(QByteArray staID) {
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116 |
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117 | _staID = staID;
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118 |
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119 | connect(this, SIGNAL(newMessage(QByteArray,bool)),
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120 | ((bncApp*)qApp), SLOT(slotMessage(const QByteArray,bool)));
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121 |
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122 | bncSettings settings;
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123 |
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124 | _static = false;
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125 | if ( Qt::CheckState(settings.value("pppStatic").toInt()) == Qt::Checked) {
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126 | _static = true;
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127 | }
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128 |
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129 | _usePhase = false;
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130 | if ( Qt::CheckState(settings.value("pppUsePhase").toInt()) == Qt::Checked) {
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131 | _usePhase = true;
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132 | }
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133 |
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134 | _estTropo = false;
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135 | if ( Qt::CheckState(settings.value("pppEstTropo").toInt()) == Qt::Checked) {
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136 | _estTropo = true;
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137 | }
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138 |
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139 | _xcBanc.ReSize(4); _xcBanc = 0.0;
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140 | _ellBanc.ReSize(3); _ellBanc = 0.0;
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141 |
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142 | _params.push_back(new bncParam(bncParam::CRD_X, 1, ""));
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143 | _params.push_back(new bncParam(bncParam::CRD_Y, 2, ""));
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144 | _params.push_back(new bncParam(bncParam::CRD_Z, 3, ""));
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145 | _params.push_back(new bncParam(bncParam::RECCLK, 4, ""));
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146 | if (_estTropo) {
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147 | _params.push_back(new bncParam(bncParam::TROPO, 5, ""));
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148 | }
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149 |
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150 | unsigned nPar = _params.size();
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151 |
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152 | _QQ.ReSize(nPar);
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153 | _QQ = 0.0;
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154 |
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155 | _QQ(1,1) = sig_crd_0 * sig_crd_0;
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156 | _QQ(2,2) = sig_crd_0 * sig_crd_0;
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157 | _QQ(3,3) = sig_crd_0 * sig_crd_0;
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158 | _QQ(4,4) = sig_clk_0 * sig_clk_0;
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159 | if (_estTropo) {
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160 | _QQ(5,5) = sig_trp_0 * sig_trp_0;
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161 | }
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162 |
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163 | // NMEA Output
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164 | // -----------
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165 | QString nmeaFileName = settings.value("nmeaFile").toString();
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166 | if (nmeaFileName.isEmpty()) {
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167 | _nmeaFile = 0;
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168 | _nmeaStream = 0;
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169 | }
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170 | else {
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171 | expandEnvVar(nmeaFileName);
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172 | _nmeaFile = new QFile(nmeaFileName);
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173 | if ( Qt::CheckState(settings.value("rnxAppend").toInt()) == Qt::Checked) {
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174 | _nmeaFile->open(QIODevice::WriteOnly | QIODevice::Append);
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175 | }
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176 | else {
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177 | _nmeaFile->open(QIODevice::WriteOnly);
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178 | }
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179 | _nmeaStream = new QTextStream();
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180 | _nmeaStream->setDevice(_nmeaFile);
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181 | QDateTime dateTime = QDateTime::currentDateTime().toUTC();
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182 | QString nmStr = "GPRMC," + dateTime.time().toString("hhmmss")
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183 | + ",A,,,,,,,"
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184 | + dateTime.date().toString("ddMMyy")
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185 | + ",,";
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186 |
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187 | writeNMEAstr(nmStr);
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188 | }
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189 |
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190 | int port = 7777;
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191 |
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192 | if (port != 0) {
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193 | _server = new QTcpServer;
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194 | if ( !_server->listen(QHostAddress::Any, port) ) {
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195 | emit newMessage("bncModel: Cannot listen on sync port", true);
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196 | }
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197 | connect(_server, SIGNAL(newConnection()), this, SLOT(slotNewConnection()));
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198 | _sockets = new QList<QTcpSocket*>;
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199 | }
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200 | else {
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201 | _server = 0;
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202 | _sockets = 0;
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203 | }
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204 |
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205 |
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206 | }
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207 |
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208 | // Destructor
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209 | ////////////////////////////////////////////////////////////////////////////
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210 | bncModel::~bncModel() {
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211 | delete _nmeaStream;
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212 | delete _nmeaFile;
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213 | delete _server;
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214 | delete _sockets;
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215 | }
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216 |
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217 | // New Connection
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218 | ////////////////////////////////////////////////////////////////////////////
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219 | void bncModel::slotNewConnection() {
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220 | _sockets->push_back( _server->nextPendingConnection() );
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221 | emit( newMessage(QString("PPP: new connection on port: # %1")
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222 | .arg(_sockets->size()).toAscii(), true) );
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223 | }
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224 |
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225 | // Bancroft Solution
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226 | ////////////////////////////////////////////////////////////////////////////
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227 | t_irc bncModel::cmpBancroft(t_epoData* epoData) {
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228 |
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229 | if (epoData->size() < MINOBS) {
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230 | _log += "\nNot enough data";
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231 | return failure;
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232 | }
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233 |
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234 | Matrix BB(epoData->size(), 4);
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235 |
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236 | QMapIterator<QString, t_satData*> it(epoData->satData);
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237 | int iObs = 0;
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238 | while (it.hasNext()) {
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239 | ++iObs;
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240 | it.next();
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241 | QString prn = it.key();
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242 | t_satData* satData = it.value();
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243 | BB(iObs, 1) = satData->xx(1);
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244 | BB(iObs, 2) = satData->xx(2);
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245 | BB(iObs, 3) = satData->xx(3);
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246 | BB(iObs, 4) = satData->P3 + satData->clk;
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247 | }
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248 |
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249 | bancroft(BB, _xcBanc);
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250 |
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251 | // Ellipsoidal Coordinates
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252 | // ------------------------
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253 | xyz2ell(_xcBanc.data(), _ellBanc.data());
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254 |
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255 | // Compute Satellite Elevations
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256 | // ----------------------------
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257 | QMutableMapIterator<QString, t_satData*> it2(epoData->satData);
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258 | while (it2.hasNext()) {
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259 | it2.next();
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260 | QString prn = it2.key();
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261 | t_satData* satData = it2.value();
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262 |
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263 | ColumnVector rr = satData->xx - _xcBanc.Rows(1,3);
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264 | double rho = rr.norm_Frobenius();
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265 |
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266 | double neu[3];
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267 | xyz2neu(_ellBanc.data(), rr.data(), neu);
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268 |
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269 | satData->eleSat = acos( sqrt(neu[0]*neu[0] + neu[1]*neu[1]) / rho );
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270 | if (neu[2] < 0) {
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271 | satData->eleSat *= -1.0;
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272 | }
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273 | satData->azSat = atan2(neu[1], neu[0]);
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274 |
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275 | if (satData->eleSat < MINELE) {
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276 | delete satData;
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277 | it2.remove();
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278 | }
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279 | }
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280 |
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281 | return success;
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282 | }
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283 |
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284 | // Computed Value
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285 | ////////////////////////////////////////////////////////////////////////////
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286 | double bncModel::cmpValue(t_satData* satData) {
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287 |
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288 | ColumnVector xRec(3);
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289 | xRec(1) = x();
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290 | xRec(2) = y();
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291 | xRec(3) = z();
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292 |
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293 | double rho0 = (satData->xx - xRec).norm_Frobenius();
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294 | double dPhi = t_CST::omega * rho0 / t_CST::c;
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295 |
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296 | xRec(1) = x() * cos(dPhi) - y() * sin(dPhi);
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297 | xRec(2) = y() * cos(dPhi) + x() * sin(dPhi);
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298 | xRec(3) = z();
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299 |
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300 | satData->rho = (satData->xx - xRec).norm_Frobenius();
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301 |
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302 | double tropDelay = delay_saast(satData->eleSat) +
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303 | trp() / sin(satData->eleSat);
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304 |
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305 | return satData->rho + clk() - satData->clk + tropDelay;
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306 | }
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307 |
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308 | // Tropospheric Model (Saastamoinen)
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309 | ////////////////////////////////////////////////////////////////////////////
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310 | double bncModel::delay_saast(double Ele) {
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311 |
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312 | double height = _ellBanc(3);
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313 |
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314 | double pp = 1013.25 * pow(1.0 - 2.26e-5 * height, 5.225);
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315 | double TT = 18.0 - height * 0.0065 + 273.15;
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316 | double hh = 50.0 * exp(-6.396e-4 * height);
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317 | double ee = hh / 100.0 * exp(-37.2465 + 0.213166*TT - 0.000256908*TT*TT);
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318 |
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319 | double h_km = height / 1000.0;
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320 |
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321 | if (h_km < 0.0) h_km = 0.0;
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322 | if (h_km > 5.0) h_km = 5.0;
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323 | int ii = int(h_km + 1);
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324 | double href = ii - 1;
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325 |
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326 | double bCor[6];
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327 | bCor[0] = 1.156;
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328 | bCor[1] = 1.006;
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329 | bCor[2] = 0.874;
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330 | bCor[3] = 0.757;
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331 | bCor[4] = 0.654;
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332 | bCor[5] = 0.563;
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333 |
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334 | double BB = bCor[ii-1] + (bCor[ii]-bCor[ii-1]) * (h_km - href);
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335 |
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336 | double zen = M_PI/2.0 - Ele;
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337 |
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338 | return (0.002277/cos(zen)) * (pp + ((1255.0/TT)+0.05)*ee - BB*(tan(zen)*tan(zen)));
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339 | }
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340 |
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341 | // Prediction Step of the Filter
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342 | ////////////////////////////////////////////////////////////////////////////
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343 | void bncModel::predict(t_epoData* epoData) {
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344 |
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345 | if (_usePhase) {
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346 |
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347 | // Make a copy of QQ and xx, set parameter indices
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348 | // -----------------------------------------------
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349 | SymmetricMatrix QQ_old = _QQ;
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350 |
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351 | for (int iPar = 1; iPar <= _params.size(); iPar++) {
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352 | _params[iPar-1]->index_old = _params[iPar-1]->index;
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353 | _params[iPar-1]->index = 0;
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354 | }
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355 |
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356 | // Remove Ambiguity Parameters without observations
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357 | // ------------------------------------------------
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358 | int iPar = 0;
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359 | QMutableVectorIterator<bncParam*> it(_params);
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360 | while (it.hasNext()) {
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361 | bncParam* par = it.next();
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362 | bool removed = false;
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363 | if (par->type == bncParam::AMB_L3) {
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364 | if (epoData->satData.find(par->prn) == epoData->satData.end()) {
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365 | removed = true;
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366 | delete par;
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367 | it.remove();
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368 | }
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369 | }
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370 | if (! removed) {
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371 | ++iPar;
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372 | par->index = iPar;
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373 | }
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374 | }
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375 |
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376 | // Add new ambiguity parameters
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377 | // ----------------------------
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378 | QMapIterator<QString, t_satData*> itObs(epoData->satData);
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379 | while (itObs.hasNext()) {
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380 | itObs.next();
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381 | QString prn = itObs.key();
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382 | bool found = false;
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383 | for (int iPar = 1; iPar <= _params.size(); iPar++) {
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384 | if (_params[iPar-1]->type == bncParam::AMB_L3 &&
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385 | _params[iPar-1]->prn == prn) {
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386 | found = true;
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387 | break;
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388 | }
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389 | }
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390 | if (!found) {
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391 | bncParam* par = new bncParam(bncParam::AMB_L3, _params.size()+1, prn);
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392 | _params.push_back(par);
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393 | }
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394 | }
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395 |
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396 | int nPar = _params.size();
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397 | _QQ.ReSize(nPar); _QQ = 0.0;
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398 | for (int i1 = 1; i1 <= nPar; i1++) {
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399 | bncParam* p1 = _params[i1-1];
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400 | if (p1->index_old != 0) {
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401 | _QQ(p1->index, p1->index) = QQ_old(p1->index_old, p1->index_old);
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402 | for (int i2 = 1; i2 <= nPar; i2++) {
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403 | bncParam* p2 = _params[i2-1];
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404 | if (p2->index_old != 0) {
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405 | _QQ(p1->index, p2->index) = QQ_old(p1->index_old, p2->index_old);
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406 | }
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407 | }
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408 | }
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409 | }
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410 |
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411 | for (int ii = 1; ii <= nPar; ii++) {
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412 | bncParam* par = _params[ii-1];
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413 | if (par->index_old == 0) {
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414 | _QQ(par->index, par->index) = sig_amb_0 * sig_amb_0;
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415 | }
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416 | par->index_old = par->index;
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417 | }
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418 | }
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419 |
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420 | // Coordinates
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421 | // -----------
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422 | if (_static) {
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423 | if (x() == 0.0 && y() == 0.0 && z() == 0.0) {
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424 | _params[0]->xx = _xcBanc(1);
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425 | _params[1]->xx = _xcBanc(2);
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426 | _params[2]->xx = _xcBanc(3);
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427 | }
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428 | }
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429 | else {
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430 | _params[0]->xx = _xcBanc(1);
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431 | _params[1]->xx = _xcBanc(2);
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432 | _params[2]->xx = _xcBanc(3);
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433 |
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434 | _QQ(1,1) += sig_crd_p * sig_crd_p;
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435 | _QQ(2,2) += sig_crd_p * sig_crd_p;
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436 | _QQ(3,3) += sig_crd_p * sig_crd_p;
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437 | }
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438 |
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439 | // Receiver Clocks
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440 | // ---------------
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441 | _params[3]->xx = _xcBanc(4);
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442 | for (int iPar = 1; iPar <= _params.size(); iPar++) {
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443 | _QQ(iPar, 4) = 0.0;
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444 | }
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445 | _QQ(4,4) = sig_clk_0 * sig_clk_0;
|
---|
446 |
|
---|
447 | // Tropospheric Delay
|
---|
448 | // ------------------
|
---|
449 | if (_estTropo) {
|
---|
450 | _QQ(5,5) += sig_trp_p * sig_trp_p;
|
---|
451 | }
|
---|
452 | }
|
---|
453 |
|
---|
454 | // Update Step of the Filter (currently just a single-epoch solution)
|
---|
455 | ////////////////////////////////////////////////////////////////////////////
|
---|
456 | t_irc bncModel::update(t_epoData* epoData) {
|
---|
457 |
|
---|
458 | _log = "Precise Point Positioning";
|
---|
459 |
|
---|
460 | _time = epoData->tt;
|
---|
461 |
|
---|
462 | SymmetricMatrix QQsav;
|
---|
463 | ColumnVector dx;
|
---|
464 | ColumnVector vv;
|
---|
465 |
|
---|
466 | // Loop over all outliers
|
---|
467 | // ----------------------
|
---|
468 | do {
|
---|
469 |
|
---|
470 | // Bancroft Solution
|
---|
471 | // -----------------
|
---|
472 | if (cmpBancroft(epoData) != success) {
|
---|
473 | _log += "\nBancroft failed";
|
---|
474 | emit newMessage(_log, false);
|
---|
475 | return failure;
|
---|
476 | }
|
---|
477 |
|
---|
478 | if (epoData->size() < MINOBS) {
|
---|
479 | _log += "\nNot enough data";
|
---|
480 | emit newMessage(_log, false);
|
---|
481 | return failure;
|
---|
482 | }
|
---|
483 |
|
---|
484 | // Status Prediction
|
---|
485 | // -----------------
|
---|
486 | predict(epoData);
|
---|
487 |
|
---|
488 | // Create First-Design Matrix
|
---|
489 | // --------------------------
|
---|
490 | unsigned nPar = _params.size();
|
---|
491 | unsigned nObs = _usePhase ? 2 * epoData->size() : epoData->size();
|
---|
492 |
|
---|
493 | Matrix AA(nObs, nPar); // first design matrix
|
---|
494 | ColumnVector ll(nObs); // tems observed-computed
|
---|
495 | SymmetricMatrix PP(nObs); PP = 0.0;
|
---|
496 |
|
---|
497 | unsigned iObs = 0;
|
---|
498 | QMapIterator<QString, t_satData*> itObs(epoData->satData);
|
---|
499 | while (itObs.hasNext()) {
|
---|
500 | ++iObs;
|
---|
501 | itObs.next();
|
---|
502 | QString prn = itObs.key();
|
---|
503 | t_satData* satData = itObs.value();
|
---|
504 |
|
---|
505 | double rhoCmp = cmpValue(satData);
|
---|
506 |
|
---|
507 | double ellWgtCoeff = 1.0;
|
---|
508 | //// double eleD = satData->eleSat * 180.0 / M_PI;
|
---|
509 | //// if (eleD < 25.0) {
|
---|
510 | //// ellWgtCoeff = 2.5 - (eleD - 10.0) * 0.1;
|
---|
511 | //// ellWgtCoeff *= ellWgtCoeff;
|
---|
512 | //// }
|
---|
513 |
|
---|
514 | ll(iObs) = satData->P3 - rhoCmp;
|
---|
515 | PP(iObs,iObs) = 1.0 / (sig_P3 * sig_P3) / ellWgtCoeff;
|
---|
516 | for (int iPar = 1; iPar <= _params.size(); iPar++) {
|
---|
517 | AA(iObs, iPar) = _params[iPar-1]->partial(satData, "");
|
---|
518 | }
|
---|
519 |
|
---|
520 | if (_usePhase) {
|
---|
521 | ++iObs;
|
---|
522 | ll(iObs) = satData->L3 - rhoCmp;
|
---|
523 | PP(iObs,iObs) = 1.0 / (sig_L3 * sig_L3) / ellWgtCoeff;
|
---|
524 | for (int iPar = 1; iPar <= _params.size(); iPar++) {
|
---|
525 | if (_params[iPar-1]->type == bncParam::AMB_L3 &&
|
---|
526 | _params[iPar-1]->prn == prn) {
|
---|
527 | ll(iObs) -= _params[iPar-1]->xx;
|
---|
528 | }
|
---|
529 | AA(iObs, iPar) = _params[iPar-1]->partial(satData, prn);
|
---|
530 | }
|
---|
531 | }
|
---|
532 | }
|
---|
533 |
|
---|
534 | // Compute Filter Update
|
---|
535 | // ---------------------
|
---|
536 | QQsav = _QQ;
|
---|
537 |
|
---|
538 | Matrix ATP = AA.t() * PP;
|
---|
539 | SymmetricMatrix NN = _QQ.i();
|
---|
540 | NN << NN + ATP * AA;
|
---|
541 | _QQ = NN.i();
|
---|
542 | dx = _QQ * ATP * ll;
|
---|
543 | vv = ll - AA * dx;
|
---|
544 |
|
---|
545 | } while (outlierDetection(QQsav, vv, epoData->satData) != 0);
|
---|
546 |
|
---|
547 | // Set Solution Vector
|
---|
548 | // -------------------
|
---|
549 | ostringstream str1;
|
---|
550 | str1.setf(ios::fixed);
|
---|
551 | QVectorIterator<bncParam*> itPar(_params);
|
---|
552 | while (itPar.hasNext()) {
|
---|
553 | bncParam* par = itPar.next();
|
---|
554 | par->xx += dx(par->index);
|
---|
555 | if (par->type == bncParam::RECCLK) {
|
---|
556 | str1 << "\n clk = " << setw(6) << setprecision(3) << par->xx
|
---|
557 | << " +- " << setw(6) << setprecision(3)
|
---|
558 | << sqrt(_QQ(par->index,par->index));
|
---|
559 | }
|
---|
560 | else if (par->type == bncParam::AMB_L3) {
|
---|
561 | str1 << "\n amb " << par->prn.toAscii().data() << " = "
|
---|
562 | << setw(6) << setprecision(3) << par->xx
|
---|
563 | << " +- " << setw(6) << setprecision(3)
|
---|
564 | << sqrt(_QQ(par->index,par->index));
|
---|
565 | }
|
---|
566 | }
|
---|
567 | _log += str1.str().c_str();
|
---|
568 |
|
---|
569 | // Message (both log file and screen)
|
---|
570 | // ----------------------------------
|
---|
571 | ostringstream str2;
|
---|
572 | str2.setf(ios::fixed);
|
---|
573 | str2 << _staID.data() << ": PPP "
|
---|
574 | << epoData->tt.timestr(1) << " " << epoData->size() << " "
|
---|
575 | << setw(14) << setprecision(3) << x() << " +- "
|
---|
576 | << setw(6) << setprecision(3) << sqrt(_QQ(1,1)) << " "
|
---|
577 | << setw(14) << setprecision(3) << y() << " +- "
|
---|
578 | << setw(6) << setprecision(3) << sqrt(_QQ(2,2)) << " "
|
---|
579 | << setw(14) << setprecision(3) << z() << " +- "
|
---|
580 | << setw(6) << setprecision(3) << sqrt(_QQ(3,3));
|
---|
581 | if (_estTropo) {
|
---|
582 | str2 << " " << setw(6) << setprecision(3) << trp() << " +- "
|
---|
583 | << setw(6) << setprecision(3) << sqrt(_QQ(5,5));
|
---|
584 | }
|
---|
585 |
|
---|
586 | emit newMessage(_log, false);
|
---|
587 | emit newMessage(QByteArray(str2.str().c_str()), true);
|
---|
588 |
|
---|
589 | // NMEA Output
|
---|
590 | // -----------
|
---|
591 | if (_nmeaStream || _sockets) {
|
---|
592 | double xyz[3];
|
---|
593 | xyz[0] = x();
|
---|
594 | xyz[1] = y();
|
---|
595 | xyz[2] = z();
|
---|
596 | double ell[3];
|
---|
597 | xyz2ell(xyz, ell);
|
---|
598 | double phiDeg = ell[0] * 180 / M_PI;
|
---|
599 | double lamDeg = ell[1] * 180 / M_PI;
|
---|
600 |
|
---|
601 | char phiCh = 'N';
|
---|
602 | if (phiDeg < 0) {
|
---|
603 | phiDeg = -phiDeg;
|
---|
604 | phiCh = 'S';
|
---|
605 | }
|
---|
606 | char lamCh = 'E';
|
---|
607 | if (lamDeg < 0) {
|
---|
608 | lamDeg = -lamDeg;
|
---|
609 | lamCh = 'W';
|
---|
610 | }
|
---|
611 |
|
---|
612 | double dop = 2.0; // TODO
|
---|
613 |
|
---|
614 | ostringstream str3;
|
---|
615 | str3.setf(ios::fixed);
|
---|
616 | str3 << "GPGGA,"
|
---|
617 | << epoData->tt.timestr(0,0) << ','
|
---|
618 | << setw(2) << setfill('0') << int(phiDeg)
|
---|
619 | << setw(10) << setprecision(7) << setfill('0')
|
---|
620 | << fmod(60*phiDeg,60) << ',' << phiCh << ','
|
---|
621 | << setw(2) << setfill('0') << int(lamDeg)
|
---|
622 | << setw(10) << setprecision(7) << setfill('0')
|
---|
623 | << fmod(60*lamDeg,60) << ',' << lamCh
|
---|
624 | << ",1," << setw(2) << setfill('0') << epoData->size() << ','
|
---|
625 | << setw(3) << setprecision(1) << dop << ','
|
---|
626 | << setprecision(3) << ell[2] << ",M,0.0,M,,,";
|
---|
627 |
|
---|
628 | writeNMEAstr(QString(str3.str().c_str()));
|
---|
629 | }
|
---|
630 |
|
---|
631 | return success;
|
---|
632 | }
|
---|
633 |
|
---|
634 | // Outlier Detection
|
---|
635 | ////////////////////////////////////////////////////////////////////////////
|
---|
636 | int bncModel::outlierDetection(const SymmetricMatrix& QQsav,
|
---|
637 | const ColumnVector& vv,
|
---|
638 | QMap<QString, t_satData*>& satData) {
|
---|
639 |
|
---|
640 | double vvMaxCode = 0.0;
|
---|
641 | double vvMaxPhase = 0.0;
|
---|
642 | QMutableMapIterator<QString, t_satData*> itMaxCode(satData);
|
---|
643 | QMutableMapIterator<QString, t_satData*> itMaxPhase(satData);
|
---|
644 |
|
---|
645 | int ii = 0;
|
---|
646 | QMutableMapIterator<QString, t_satData*> it(satData);
|
---|
647 | while (it.hasNext()) {
|
---|
648 | it.next();
|
---|
649 | ++ii;
|
---|
650 |
|
---|
651 | if (vvMaxCode == 0.0 || fabs(vv(ii)) > vvMaxCode) {
|
---|
652 | vvMaxCode = fabs(vv(ii));
|
---|
653 | itMaxCode = it;
|
---|
654 | }
|
---|
655 |
|
---|
656 | if (_usePhase) {
|
---|
657 | ++ii;
|
---|
658 | if (vvMaxPhase == 0.0 || fabs(vv(ii)) > vvMaxPhase) {
|
---|
659 | vvMaxPhase = fabs(vv(ii));
|
---|
660 | itMaxPhase = it;
|
---|
661 | }
|
---|
662 | }
|
---|
663 | }
|
---|
664 |
|
---|
665 | if (vvMaxCode > MAXRES_CODE) {
|
---|
666 | QString prn = itMaxCode.key();
|
---|
667 | t_satData* satData = itMaxCode.value();
|
---|
668 | delete satData;
|
---|
669 | itMaxCode.remove();
|
---|
670 | _QQ = QQsav;
|
---|
671 |
|
---|
672 | _log += "\nOutlier Code " + prn.toAscii() + " "
|
---|
673 | + QByteArray::number(vvMaxCode, 'f', 3);
|
---|
674 |
|
---|
675 | return 1;
|
---|
676 | }
|
---|
677 | else if (vvMaxPhase > MAXRES_PHASE) {
|
---|
678 | QString prn = itMaxPhase.key();
|
---|
679 | t_satData* satData = itMaxPhase.value();
|
---|
680 | delete satData;
|
---|
681 | itMaxPhase.remove();
|
---|
682 | _QQ = QQsav;
|
---|
683 |
|
---|
684 | _log += "\nOutlier Phase " + prn.toAscii() + " "
|
---|
685 | + QByteArray::number(vvMaxPhase, 'f', 3);
|
---|
686 |
|
---|
687 | return 1;
|
---|
688 | }
|
---|
689 |
|
---|
690 | return 0;
|
---|
691 | }
|
---|
692 |
|
---|
693 | //
|
---|
694 | ////////////////////////////////////////////////////////////////////////////
|
---|
695 | void bncModel::writeNMEAstr(const QString& nmStr) {
|
---|
696 |
|
---|
697 | unsigned char XOR = 0;
|
---|
698 | for (int ii = 0; ii < nmStr.length(); ii++) {
|
---|
699 | XOR ^= (unsigned char) nmStr[ii].toAscii();
|
---|
700 | }
|
---|
701 |
|
---|
702 | if (_nmeaStream) {
|
---|
703 | *_nmeaStream << '$' << nmStr << '*' << hex << (int) XOR << endl;
|
---|
704 | _nmeaStream->flush();
|
---|
705 | }
|
---|
706 |
|
---|
707 | if (_sockets) {
|
---|
708 | QMutableListIterator<QTcpSocket*> is(*_sockets);
|
---|
709 | while (is.hasNext()) {
|
---|
710 | QTcpSocket* sock = is.next();
|
---|
711 | if (sock->state() == QAbstractSocket::ConnectedState) {
|
---|
712 | // *sock << '$' << nmStr << '*' << hex << (int) XOR << endl;
|
---|
713 | // sock->flush();
|
---|
714 | }
|
---|
715 | else if (sock->state() != QAbstractSocket::ConnectingState) {
|
---|
716 | delete sock;
|
---|
717 | is.remove();
|
---|
718 | }
|
---|
719 | }
|
---|
720 | }
|
---|
721 | }
|
---|