1 | /* -------------------------------------------------------------------------
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2 | * BKG NTRIP Server
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3 | * -------------------------------------------------------------------------
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4 | *
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5 | * Class: bncRtnetUploadCaster
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6 | *
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7 | * Purpose: Connection to NTRIP Caster
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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-Mar-2011
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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 | #include <math.h>
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18 | #include "bncrtnetuploadcaster.h"
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19 | #include "bncsettings.h"
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20 | #include "bncephuser.h"
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21 | #include "bncclockrinex.h"
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22 | #include "bncsp3.h"
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23 |
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24 | using namespace std;
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25 |
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26 | // Constructor
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27 | ////////////////////////////////////////////////////////////////////////////
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28 | bncRtnetUploadCaster::bncRtnetUploadCaster(const QString& mountpoint,
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29 | const QString& outHost, int outPort,
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30 | const QString& password,
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31 | const QString& crdTrafo, bool CoM,
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32 | const QString& sp3FileName,
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33 | const QString& rnxFileName,
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34 | int PID, int SID, int IOD, int iRow) :
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35 | bncUploadCaster(mountpoint, outHost, outPort, password, iRow, 0) {
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36 |
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37 | _crdTrafo = crdTrafo;
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38 | _CoM = CoM;
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39 | _PID = PID;
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40 | _SID = SID;
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41 | _IOD = IOD;
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42 |
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43 | // Member that receives the ephemeris
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44 | // ----------------------------------
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45 | _ephUser = new bncEphUser();
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46 |
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47 | bncSettings settings;
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48 | QString intr = settings.value("uploadIntr").toString();
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49 |
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50 | _samplRtcmEphCorr = settings.value("uploadSamplRtcmEphCorr").toDouble();
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51 | int samplClkRnx = settings.value("uploadSamplClkRnx").toInt();
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52 | int samplSp3 = settings.value("uploadSamplSp3").toInt() * 60;
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53 |
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54 | if (_samplRtcmEphCorr == 0.0) {
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55 | _usedEph = 0;
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56 | }
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57 | else {
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58 | _usedEph = new QMap<QString, t_eph*>;
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59 | }
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60 |
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61 | // RINEX writer
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62 | // ------------
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63 | if (!rnxFileName.isEmpty()) {
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64 | _rnx = new bncClockRinex(rnxFileName, intr, samplClkRnx);
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65 | }
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66 | else {
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67 | _rnx = 0;
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68 | }
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69 |
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70 | // SP3 writer
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71 | // ----------
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72 | if (!sp3FileName.isEmpty()) {
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73 | _sp3 = new bncSP3(sp3FileName, intr, samplSp3);
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74 | }
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75 | else {
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76 | _sp3 = 0;
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77 | }
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78 |
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79 | // Set Transformation Parameters
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80 | // -----------------------------
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81 | if (_crdTrafo == "ETRF2000") {
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82 | _dx = 0.0521;
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83 | _dy = 0.0493;
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84 | _dz = -0.0585;
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85 | _dxr = 0.0001;
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86 | _dyr = 0.0001;
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87 | _dzr = -0.0018;
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88 | _ox = 0.000891;
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89 | _oy = 0.005390;
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90 | _oz = -0.008712;
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91 | _oxr = 0.000081;
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92 | _oyr = 0.000490;
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93 | _ozr = -0.000792;
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94 | _sc = 1.34;
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95 | _scr = 0.08;
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96 | _t0 = 2000.0;
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97 | }
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98 | else if (_crdTrafo == "NAD83") {
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99 | _dx = 0.9963;
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100 | _dy = -1.9024;
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101 | _dz = -0.5210;
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102 | _dxr = 0.0005;
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103 | _dyr = -0.0006;
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104 | _dzr = -0.0013;
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105 | _ox = -0.025915;
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106 | _oy = -0.009426;
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107 | _oz = -0.011599;
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108 | _oxr = -0.000067;
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109 | _oyr = 0.000757;
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110 | _ozr = 0.000051;
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111 | _sc = 0.78;
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112 | _scr = -0.10;
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113 | _t0 = 1997.0;
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114 | }
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115 | else if (_crdTrafo == "GDA94") {
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116 | _dx = -0.08468;
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117 | _dy = -0.01942;
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118 | _dz = 0.03201;
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119 | _dxr = 0.00142;
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120 | _dyr = 0.00134;
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121 | _dzr = 0.00090;
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122 | _ox = 0.0004254;
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123 | _oy = -0.0022578;
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124 | _oz = -0.0024015;
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125 | _oxr = -0.0015461;
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126 | _oyr = -0.0011820;
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127 | _ozr = -0.0011551;
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128 | _sc = 9.710;
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129 | _scr = 0.109;
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130 | _t0 = 1994.0;
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131 | }
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132 | else if (_crdTrafo == "SIRGAS2000") {
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133 | _dx = 0.0020;
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134 | _dy = 0.0041;
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135 | _dz = 0.0039;
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136 | _dxr = 0.0000;
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137 | _dyr = 0.0000;
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138 | _dzr = 0.0000;
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139 | _ox = 0.000170;
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140 | _oy = -0.000030;
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141 | _oz = 0.000070;
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142 | _oxr = 0.000000;
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143 | _oyr = 0.000000;
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144 | _ozr = 0.000000;
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145 | _sc = 0.000;
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146 | _scr = 0.000;
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147 | _t0 = 0000.0;
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148 | }
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149 | else if (_crdTrafo == "SIRGAS95") {
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150 | _dx = 0.0077;
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151 | _dy = 0.0058;
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152 | _dz = -0.0138;
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153 | _dxr = 0.0000;
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154 | _dyr = 0.0000;
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155 | _dzr = 0.0000;
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156 | _ox = 0.000000;
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157 | _oy = 0.000000;
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158 | _oz = -0.000030;
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159 | _oxr = 0.000000;
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160 | _oyr = 0.000000;
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161 | _ozr = 0.000000;
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162 | _sc = 1.570;
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163 | _scr = 0.000;
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164 | _t0 = 0000.0;
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165 | }
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166 | else if (_crdTrafo == "Custom") {
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167 | _dx = settings.value("trafo_dx").toDouble();
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168 | _dy = settings.value("trafo_dy").toDouble();
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169 | _dz = settings.value("trafo_dz").toDouble();
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170 | _dxr = settings.value("trafo_dxr").toDouble();
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171 | _dyr = settings.value("trafo_dyr").toDouble();
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172 | _dzr = settings.value("trafo_dzr").toDouble();
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173 | _ox = settings.value("trafo_ox").toDouble();
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174 | _oy = settings.value("trafo_oy").toDouble();
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175 | _oz = settings.value("trafo_oz").toDouble();
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176 | _oxr = settings.value("trafo_oxr").toDouble();
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177 | _oyr = settings.value("trafo_oyr").toDouble();
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178 | _ozr = settings.value("trafo_ozr").toDouble();
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179 | _sc = settings.value("trafo_sc").toDouble();
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180 | _scr = settings.value("trafo_scr").toDouble();
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181 | _t0 = settings.value("trafo_t0").toDouble();
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182 | }
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183 | }
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184 |
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185 | // Destructor
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186 | ////////////////////////////////////////////////////////////////////////////
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187 | bncRtnetUploadCaster::~bncRtnetUploadCaster() {
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188 | if (isRunning()) {
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189 | wait();
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190 | }
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191 | delete _rnx;
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192 | delete _sp3;
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193 | delete _ephUser;
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194 | delete _usedEph;
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195 | }
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196 |
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197 | //
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198 | ////////////////////////////////////////////////////////////////////////////
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199 | void bncRtnetUploadCaster::decodeRtnetStream(char* buffer, int bufLen) {
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200 |
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201 | QMutexLocker locker(&_mutex);
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202 |
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203 | // Append to internal buffer
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204 | // -------------------------
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205 | _rtnetStreamBuffer.append(QByteArray(buffer, bufLen));
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206 |
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207 | // Select buffer part that contains last epoch
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208 | // -------------------------------------------
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209 | QStringList lines;
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210 | int iEpoBeg = _rtnetStreamBuffer.lastIndexOf('*'); // begin of last epoch
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211 | if (iEpoBeg == -1) {
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212 | _rtnetStreamBuffer.clear();
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213 | return;
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214 | }
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215 | _rtnetStreamBuffer = _rtnetStreamBuffer.mid(iEpoBeg);
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216 |
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217 | int iEpoEnd = _rtnetStreamBuffer.lastIndexOf("EOE"); // end of last epoch
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218 | if (iEpoEnd == -1) {
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219 | return;
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220 | }
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221 | else {
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222 | lines = _rtnetStreamBuffer.left(iEpoEnd).split('\n', QString::SkipEmptyParts);
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223 | _rtnetStreamBuffer = _rtnetStreamBuffer.mid(iEpoEnd+3);
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224 | }
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225 |
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226 | if (lines.size() < 2) {
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227 | return;
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228 | }
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229 |
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230 | // Keep the last unfinished line in buffer
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231 | // ---------------------------------------
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232 | int iLastEOL = _rtnetStreamBuffer.lastIndexOf('\n');
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233 | if (iLastEOL != -1) {
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234 | _rtnetStreamBuffer = _rtnetStreamBuffer.mid(iLastEOL+1);
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235 | }
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236 |
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237 | // Read first line (with epoch time)
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238 | // ---------------------------------
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239 | QTextStream in(lines[0].toAscii());
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240 | QString hlp;
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241 | int year, month, day, hour, min;
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242 | double sec;
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243 | in >> hlp >> year >> month >> day >> hour >> min >> sec;
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244 | bncTime epoTime; epoTime.set( year, month, day, hour, min, sec);
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245 |
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246 | emit(newMessage("decodeRtnetStream: " + lines[0].toAscii(), false));
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247 |
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248 | struct ClockOrbit co;
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249 | memset(&co, 0, sizeof(co));
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250 | co.GPSEpochTime = static_cast<int>(epoTime.gpssec());
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251 | co.GLONASSEpochTime = static_cast<int>(fmod(epoTime.gpssec(), 86400.0))
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252 | + 3 * 3600 - gnumleap(year, month, day);
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253 | co.ClockDataSupplied = 1;
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254 | co.OrbitDataSupplied = 1;
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255 | co.SatRefDatum = DATUM_ITRF;
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256 | co.SSRIOD = _IOD;
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257 | co.SSRProviderID = _PID; // 256 .. BKG, 257 ... EUREF
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258 | co.SSRSolutionID = _SID;
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259 |
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260 | struct Bias bias;
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261 | memset(&bias, 0, sizeof(bias));
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262 | bias.GPSEpochTime = co.GPSEpochTime;
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263 | bias.GLONASSEpochTime = co.GLONASSEpochTime;
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264 |
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265 | // Default Update Interval
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266 | // -----------------------
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267 | int clkUpdInd = 2; // 5 sec
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268 | int ephUpdInd = clkUpdInd; // default
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269 | if (_samplRtcmEphCorr == 10.0) {
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270 | ephUpdInd = 3;
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271 | }
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272 | else if (_samplRtcmEphCorr == 15.0) {
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273 | ephUpdInd = 4;
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274 | }
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275 | else if (_samplRtcmEphCorr == 30.0) {
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276 | ephUpdInd = 5;
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277 | }
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278 | else if (_samplRtcmEphCorr == 60.0) {
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279 | ephUpdInd = 6;
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280 | }
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281 | else if (_samplRtcmEphCorr == 120.0) {
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282 | ephUpdInd = 7;
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283 | }
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284 | else if (_samplRtcmEphCorr == 240.0) {
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285 | ephUpdInd = 8;
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286 | }
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287 | else if (_samplRtcmEphCorr == 300.0) {
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288 | ephUpdInd = 9;
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289 | }
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290 | else if (_samplRtcmEphCorr == 600.0) {
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291 | ephUpdInd = 10;
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292 | }
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293 | else if (_samplRtcmEphCorr == 900.0) {
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294 | ephUpdInd = 11;
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295 | }
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296 |
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297 | co.UpdateInterval = clkUpdInd;
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298 | bias.UpdateInterval = clkUpdInd;
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299 |
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300 | for (int ii = 1; ii < lines.size(); ii++) {
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301 |
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302 | QString prn;
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303 | ColumnVector xx(14); xx = 0.0;
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304 |
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305 | QTextStream in(lines[ii].toAscii());
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306 |
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307 | in >> prn;
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308 | if (prn[0] == 'P') {
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309 | prn.remove(0,1);
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310 | }
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311 |
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312 | t_eph* eph = 0;
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313 | const bncEphUser::t_ephPair* ephPair = _ephUser->ephPair(prn);
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314 | if (ephPair) {
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315 |
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316 | eph = ephPair->last;
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317 |
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318 | // Use previous ephemeris if the last one is too recent
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319 | // ----------------------------------------------------
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320 | const int MINAGE = 60; // seconds
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321 | if (ephPair->prev && eph->receptDateTime().isValid() &&
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322 | eph->receptDateTime().secsTo(currentDateAndTimeGPS()) < MINAGE) {
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323 | eph = ephPair->prev;
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324 | }
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325 |
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326 | // Make sure the clock messages refer to same IOD as orbit messages
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327 | // ----------------------------------------------------------------
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328 | if (_usedEph) {
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329 | if (fmod(epoTime.gpssec(), _samplRtcmEphCorr) == 0.0) {
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330 | (*_usedEph)[prn] = eph;
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331 | }
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332 | else {
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333 | eph = 0;
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334 | if (_usedEph->contains(prn)) {
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335 | t_eph* usedEph = _usedEph->value(prn);
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336 | if (usedEph == ephPair->last) {
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337 | eph = ephPair->last;
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338 | }
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339 | else if (usedEph == ephPair->prev) {
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340 | eph = ephPair->prev;
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341 | }
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342 | }
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343 | }
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344 | }
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345 | }
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346 |
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347 | if (eph) {
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348 |
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349 | in >> xx(1) >> xx(2) >> xx(3) >> xx(4) >> xx(5)
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350 | >> xx(6) >> xx(7) >> xx(8) >> xx(9) >> xx(10)
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351 | >> xx(11) >> xx(12) >> xx(13) >> xx(14);
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352 | xx(1) *= 1e3; // x-crd
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353 | xx(2) *= 1e3; // y-crd
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354 | xx(3) *= 1e3; // z-crd
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355 | xx(4) *= 1e-6; // clk
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356 | xx(5) *= 1e-6; // rel. corr.
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357 | // xx(6), xx(7), xx(8) ... PhaseCent - CoM
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358 | // xx(9) ... P1-C1 DCB in meters
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359 | // xx(10) ... P1-P2 DCB in meters
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360 | // xx(11) ... dT
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361 | xx(12) *= 1e3; // x-crd at time + dT
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362 | xx(13) *= 1e3; // y-crd at time + dT
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363 | xx(14) *= 1e3; // z-crd at time + dT
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364 |
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365 | struct ClockOrbit::SatData* sd = 0;
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366 | if (prn[0] == 'G') {
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367 | sd = co.Sat + co.NumberOfGPSSat;
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368 | ++co.NumberOfGPSSat;
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369 | }
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370 | else if (prn[0] == 'R') {
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371 | sd = co.Sat + CLOCKORBIT_NUMGPS + co.NumberOfGLONASSSat;
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372 | ++co.NumberOfGLONASSSat;
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373 | }
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374 | if (sd) {
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375 | QString outLine;
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376 | processSatellite(eph, epoTime.gpsw(), epoTime.gpssec(), prn,
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377 | xx, sd, outLine);
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378 | }
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379 |
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380 | struct Bias::BiasSat* biasSat = 0;
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381 | if (prn[0] == 'G') {
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382 | biasSat = bias.Sat + bias.NumberOfGPSSat;
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383 | ++bias.NumberOfGPSSat;
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384 | }
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385 | else if (prn[0] == 'R') {
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386 | biasSat = bias.Sat + CLOCKORBIT_NUMGPS + bias.NumberOfGLONASSSat;
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387 | ++bias.NumberOfGLONASSSat;
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388 | }
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389 |
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390 | // Coefficient of Ionosphere-Free LC
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391 | // ---------------------------------
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392 | const static double a_L1_GPS = 2.54572778;
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393 | const static double a_L2_GPS = -1.54572778;
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394 | const static double a_L1_Glo = 2.53125000;
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395 | const static double a_L2_Glo = -1.53125000;
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396 |
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397 | if (biasSat) {
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398 | biasSat->ID = prn.mid(1).toInt();
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399 | biasSat->NumberOfCodeBiases = 3;
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400 | if (prn[0] == 'G') {
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401 | biasSat->Biases[0].Type = CODETYPEGPS_L1_Z;
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402 | biasSat->Biases[0].Bias = - a_L2_GPS * xx(10);
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403 | biasSat->Biases[1].Type = CODETYPEGPS_L1_CA;
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404 | biasSat->Biases[1].Bias = - a_L2_GPS * xx(10) + xx(9);
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405 | biasSat->Biases[2].Type = CODETYPEGPS_L2_Z;
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406 | biasSat->Biases[2].Bias = a_L1_GPS * xx(10);
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407 | }
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408 | else if (prn[0] == 'R') {
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409 | biasSat->Biases[0].Type = CODETYPEGLONASS_L1_P;
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410 | biasSat->Biases[0].Bias = - a_L2_Glo * xx(10);
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411 | biasSat->Biases[1].Type = CODETYPEGLONASS_L1_CA;
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412 | biasSat->Biases[1].Bias = - a_L2_Glo * xx(10) + xx(9);
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413 | biasSat->Biases[2].Type = CODETYPEGLONASS_L2_P;
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414 | biasSat->Biases[2].Bias = a_L1_Glo * xx(10);
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415 | }
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416 | }
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417 | }
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418 | }
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419 |
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420 | QByteArray hlpBufferCo;
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421 |
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422 | // Orbit and Clock Corrections together
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423 | // ------------------------------------
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424 | if (_samplRtcmEphCorr == 0.0) {
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425 | if (co.NumberOfGPSSat > 0 || co.NumberOfGLONASSSat > 0) {
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426 | char obuffer[CLOCKORBIT_BUFFERSIZE];
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427 | int len = MakeClockOrbit(&co, COTYPE_AUTO, 0, obuffer, sizeof(obuffer));
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428 | if (len > 0) {
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429 | hlpBufferCo = QByteArray(obuffer, len);
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430 | }
|
---|
431 | }
|
---|
432 | }
|
---|
433 |
|
---|
434 | // Orbit and Clock Corrections separately
|
---|
435 | // --------------------------------------
|
---|
436 | else {
|
---|
437 | if (co.NumberOfGPSSat > 0) {
|
---|
438 | char obuffer[CLOCKORBIT_BUFFERSIZE];
|
---|
439 | if (fmod(epoTime.gpssec(), _samplRtcmEphCorr) == 0.0) {
|
---|
440 | co.UpdateInterval = ephUpdInd;
|
---|
441 | int len1 = MakeClockOrbit(&co, COTYPE_GPSORBIT, 1, obuffer, sizeof(obuffer));
|
---|
442 | co.UpdateInterval = clkUpdInd;
|
---|
443 | if (len1 > 0) {
|
---|
444 | hlpBufferCo += QByteArray(obuffer, len1);
|
---|
445 | }
|
---|
446 | }
|
---|
447 | int mmsg = (co.NumberOfGLONASSSat > 0) ? 1 : 0;
|
---|
448 | int len2 = MakeClockOrbit(&co, COTYPE_GPSCLOCK, mmsg, obuffer, sizeof(obuffer));
|
---|
449 | if (len2 > 0) {
|
---|
450 | hlpBufferCo += QByteArray(obuffer, len2);
|
---|
451 | }
|
---|
452 | }
|
---|
453 | if (co.NumberOfGLONASSSat > 0) {
|
---|
454 | char obuffer[CLOCKORBIT_BUFFERSIZE];
|
---|
455 | if (fmod(epoTime.gpssec(), _samplRtcmEphCorr) == 0.0) {
|
---|
456 | co.UpdateInterval = ephUpdInd;
|
---|
457 | int len1 = MakeClockOrbit(&co, COTYPE_GLONASSORBIT, 1, obuffer, sizeof(obuffer));
|
---|
458 | co.UpdateInterval = clkUpdInd;
|
---|
459 | if (len1 > 0) {
|
---|
460 | hlpBufferCo += QByteArray(obuffer, len1);
|
---|
461 | }
|
---|
462 | }
|
---|
463 | int len2 = MakeClockOrbit(&co, COTYPE_GLONASSCLOCK, 0, obuffer, sizeof(obuffer));
|
---|
464 | if (len2 > 0) {
|
---|
465 | hlpBufferCo += QByteArray(obuffer, len2);
|
---|
466 | }
|
---|
467 | }
|
---|
468 | }
|
---|
469 |
|
---|
470 | // Biases
|
---|
471 | // ------
|
---|
472 | QByteArray hlpBufferBias;
|
---|
473 | if (bias.NumberOfGPSSat > 0 || bias.NumberOfGLONASSSat > 0) {
|
---|
474 | char obuffer[CLOCKORBIT_BUFFERSIZE];
|
---|
475 | int len = MakeBias(&bias, BTYPE_AUTO, 0, obuffer, sizeof(obuffer));
|
---|
476 | if (len > 0) {
|
---|
477 | hlpBufferBias = QByteArray(obuffer, len);
|
---|
478 | }
|
---|
479 | }
|
---|
480 |
|
---|
481 | _outBuffer += hlpBufferCo + hlpBufferBias;
|
---|
482 | }
|
---|
483 |
|
---|
484 | //
|
---|
485 | ////////////////////////////////////////////////////////////////////////////
|
---|
486 | void bncRtnetUploadCaster::processSatellite(t_eph* eph, int GPSweek,
|
---|
487 | double GPSweeks, const QString& prn,
|
---|
488 | const ColumnVector& xx,
|
---|
489 | struct ClockOrbit::SatData* sd,
|
---|
490 | QString& outLine) {
|
---|
491 |
|
---|
492 | // Broadcast Position and Velocity
|
---|
493 | // -------------------------------
|
---|
494 | ColumnVector xB(4);
|
---|
495 | ColumnVector vB(3);
|
---|
496 | eph->position(GPSweek, GPSweeks, xB.data(), vB.data());
|
---|
497 |
|
---|
498 | // Precise Position and Velocity
|
---|
499 | // -----------------------------
|
---|
500 | ColumnVector xP = xx.Rows(1,3);
|
---|
501 | ColumnVector vP = (xx.Rows(12,14) - xx.Rows(1,3)) / xx(11);
|
---|
502 |
|
---|
503 | // Correction Center of Mass -> Antenna Phase Center
|
---|
504 | // -------------------------------------------------
|
---|
505 | if (! _CoM) {
|
---|
506 | xP(1) += xx(6);
|
---|
507 | xP(2) += xx(7);
|
---|
508 | xP(3) += xx(8);
|
---|
509 | }
|
---|
510 |
|
---|
511 | double dc = 0.0;
|
---|
512 | if (_crdTrafo != "IGS08") {
|
---|
513 | crdTrafo(GPSweek, xP, dc);
|
---|
514 | }
|
---|
515 |
|
---|
516 | // Difference in xyz
|
---|
517 | // -----------------
|
---|
518 | ColumnVector dx = xB.Rows(1,3) - xP;
|
---|
519 | ColumnVector dv = vB - vP;
|
---|
520 |
|
---|
521 | // Difference in RSW
|
---|
522 | // -----------------
|
---|
523 | ColumnVector rsw(3);
|
---|
524 | XYZ_to_RSW(xB.Rows(1,3), vB, dx, rsw);
|
---|
525 |
|
---|
526 | ColumnVector dotRsw(3);
|
---|
527 | XYZ_to_RSW(xB.Rows(1,3), vB, dv, dotRsw);
|
---|
528 |
|
---|
529 | // Clock Correction
|
---|
530 | // ----------------
|
---|
531 | double dClk = (xx(4) + xx(5) - xB(4) + dc) * t_CST::c;
|
---|
532 |
|
---|
533 | if (sd) {
|
---|
534 | sd->ID = prn.mid(1).toInt();
|
---|
535 | sd->IOD = eph->IOD();
|
---|
536 | sd->Clock.DeltaA0 = dClk;
|
---|
537 | sd->Orbit.DeltaRadial = rsw(1);
|
---|
538 | sd->Orbit.DeltaAlongTrack = rsw(2);
|
---|
539 | sd->Orbit.DeltaCrossTrack = rsw(3);
|
---|
540 | sd->Orbit.DotDeltaRadial = dotRsw(1);
|
---|
541 | sd->Orbit.DotDeltaAlongTrack = dotRsw(2);
|
---|
542 | sd->Orbit.DotDeltaCrossTrack = dotRsw(3);
|
---|
543 | }
|
---|
544 |
|
---|
545 | outLine.sprintf("%d %.1f %s %3d %10.3f %8.3f %8.3f %8.3f\n",
|
---|
546 | GPSweek, GPSweeks, eph->prn().toAscii().data(),
|
---|
547 | eph->IOD(), dClk, rsw(1), rsw(2), rsw(3));
|
---|
548 |
|
---|
549 | if (_rnx) {
|
---|
550 | _rnx->write(GPSweek, GPSweeks, prn, xx);
|
---|
551 | }
|
---|
552 | if (_sp3) {
|
---|
553 | _sp3->write(GPSweek, GPSweeks, prn, xx);
|
---|
554 | }
|
---|
555 | }
|
---|
556 |
|
---|
557 | // Transform Coordinates
|
---|
558 | ////////////////////////////////////////////////////////////////////////////
|
---|
559 | void bncRtnetUploadCaster::crdTrafo(int GPSWeek, ColumnVector& xyz,
|
---|
560 | double& dc) {
|
---|
561 |
|
---|
562 | // Current epoch minus 2000.0 in years
|
---|
563 | // ------------------------------------
|
---|
564 | double dt = (GPSWeek - (1042.0+6.0/7.0)) / 365.2422 * 7.0 + 2000.0 - _t0;
|
---|
565 |
|
---|
566 | ColumnVector dx(3);
|
---|
567 |
|
---|
568 | dx(1) = _dx + dt * _dxr;
|
---|
569 | dx(2) = _dy + dt * _dyr;
|
---|
570 | dx(3) = _dz + dt * _dzr;
|
---|
571 |
|
---|
572 | static const double arcSec = 180.0 * 3600.0 / M_PI;
|
---|
573 |
|
---|
574 | double ox = (_ox + dt * _oxr) / arcSec;
|
---|
575 | double oy = (_oy + dt * _oyr) / arcSec;
|
---|
576 | double oz = (_oz + dt * _ozr) / arcSec;
|
---|
577 |
|
---|
578 | double sc = 1.0 + _sc * 1e-9 + dt * _scr * 1e-9;
|
---|
579 |
|
---|
580 | // Specify approximate center of area
|
---|
581 | // ----------------------------------
|
---|
582 | ColumnVector meanSta(3);
|
---|
583 |
|
---|
584 | if (_crdTrafo == "ETRF2000") {
|
---|
585 | meanSta(1) = 3661090.0;
|
---|
586 | meanSta(2) = 845230.0;
|
---|
587 | meanSta(3) = 5136850.0;
|
---|
588 | }
|
---|
589 | else if (_crdTrafo == "NAD83") {
|
---|
590 | meanSta(1) = -1092950.0;
|
---|
591 | meanSta(2) = -4383600.0;
|
---|
592 | meanSta(3) = 4487420.0;
|
---|
593 | }
|
---|
594 | else if (_crdTrafo == "GDA94") {
|
---|
595 | meanSta(1) = -4052050.0;
|
---|
596 | meanSta(2) = 4212840.0;
|
---|
597 | meanSta(3) = -2545110.0;
|
---|
598 | }
|
---|
599 | else if (_crdTrafo == "SIRGAS2000") {
|
---|
600 | meanSta(1) = 3740860.0;
|
---|
601 | meanSta(2) = -4964290.0;
|
---|
602 | meanSta(3) = -1425420.0;
|
---|
603 | }
|
---|
604 | else if (_crdTrafo == "SIRGAS95") {
|
---|
605 | meanSta(1) = 3135390.0;
|
---|
606 | meanSta(2) = -5017670.0;
|
---|
607 | meanSta(3) = -2374440.0;
|
---|
608 | }
|
---|
609 | else if (_crdTrafo == "Custom") {
|
---|
610 | meanSta(1) = 0.0; // TODO
|
---|
611 | meanSta(2) = 0.0; // TODO
|
---|
612 | meanSta(3) = 0.0; // TODO
|
---|
613 | }
|
---|
614 |
|
---|
615 | // Clock correction proportional to topocentric distance to satellites
|
---|
616 | // -------------------------------------------------------------------
|
---|
617 | double rho = (xyz - meanSta).norm_Frobenius();
|
---|
618 | dc = rho * (sc - 1.0) / sc / t_CST::c;
|
---|
619 |
|
---|
620 | Matrix rMat(3,3);
|
---|
621 | rMat(1,1) = 1.0;
|
---|
622 | rMat(1,2) = -oz;
|
---|
623 | rMat(1,3) = oy;
|
---|
624 | rMat(2,1) = oz;
|
---|
625 | rMat(2,2) = 1.0;
|
---|
626 | rMat(2,3) = -ox;
|
---|
627 | rMat(3,1) = -oy;
|
---|
628 | rMat(3,2) = ox;
|
---|
629 | rMat(3,3) = 1.0;
|
---|
630 |
|
---|
631 | xyz = sc * rMat * xyz + dx;
|
---|
632 | }
|
---|
633 |
|
---|