1 | // -*- C++ -*-
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2 | //
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3 | // $Id: GPSDecoder.h,v 1.1.1.1 2006/05/30 11:05:27 mervart Exp $
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4 | // 2005/04/11: include 'int iPCode' into class 'GPSDecoder' (BKG)
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5 | #if !defined(__GPSDecoder_h__)
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6 | #define __GPSDecoder_h__
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7 |
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8 | #include <list>
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9 | #include <iostream>
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10 |
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11 | using namespace std;
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12 |
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13 | //
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14 | // One Code/Phase - Measurement
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15 | //
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16 | struct Observation {
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17 | Observation()
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18 | :SVPRN(0)
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19 | ,GPSWeek(0)
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20 | ,GPSWeeks(0)
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21 | ,sec(0.)
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22 | ,C1(0.)
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23 | ,P2(0.)
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24 | ,L1(0.)
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25 | ,L2(0.)
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26 | ,SNR1(0)
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27 | ,SNR2(0)
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28 | ,pCodeIndicator(0)
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29 | ,cumuLossOfCont(0)
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30 | {StatID[0] = '\0';}
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31 |
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32 | Observation( char _statID
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33 | ,char _svprn
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34 | ,short _GPSWeek
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35 | ,int _GPSWeeks
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36 | ,double _sec
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37 | ,double _C1
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38 | ,double _P2
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39 | ,double _L1
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40 | ,double _L2
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41 | ,short _SNR1
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42 | ,short _SNR2
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43 | ,int _pCodeIndicator
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44 | ,u_int _cumuLossOfCont)
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45 | :SVPRN(_svprn)
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46 | ,GPSWeek(_GPSWeek)
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47 | ,GPSWeeks(_GPSWeeks)
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48 | ,sec(_sec)
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49 | ,C1(_C1)
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50 | ,P2(_P2)
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51 | ,L1(_L1)
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52 | ,L2(_L2)
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53 | ,SNR1(_SNR1)
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54 | ,SNR2(_SNR2)
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55 | ,pCodeIndicator(_pCodeIndicator)
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56 | ,cumuLossOfCont(_cumuLossOfCont)
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57 | {StatID[0] = _statID; StatID[1] = '\0';}
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58 |
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59 | char StatID[5+1]; //< Station ID
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60 | char SVPRN; //< Satellite PRN
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61 | short GPSWeek; //< Week of GPS-Time
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62 | int GPSWeeks; //< Second of Week (GPS-Time>
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63 | double sec;
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64 | double C1; //< CA-code validated raw pseudorange (meters)
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65 | double P2; //< P2-code validated raw pseudorange (meters)
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66 | double L1; //< validated raw carrier phase (meters)
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67 | double L2; //< validated raw carrier phase (meters)
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68 | short SNR1; //< signal-to noise ration (0.1 dB)
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69 | short SNR2; //< signal-to noise ration (0.1 dB)
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70 | int pCodeIndicator; // 0 ... CA Code, 1 ... P Code
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71 | u_int cumuLossOfCont; // 0 to 31
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72 | } ;
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73 |
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74 | //
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75 | // GPS Orbitinformation
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76 | //
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77 | struct Ephemeris {
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78 | short svprn; //< Satellite PRN
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79 | short wn; //< GPS - week number
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80 | short aodc; //< Age of data issue Clock
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81 | short aode; //< Age of data issue Orbit
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82 | double tow; //< Seconds of GPS week
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83 | double toc; //< Reference time, Clock (sec)
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84 | double toe; //< Ref.time for Orbit:(sec)
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85 | double tgd; //< Group delay (sec)
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86 | double af2; //< Clock parameter: (sec/sec^2)
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87 | double af1; //< Clock parameter: (sec/sec)
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88 | double af0; //< Clock parameter: (sec)
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89 | double crs; //< Sin-harmonic correction term, orbit radius:(meters)
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90 | double deltan; //< Mean anomaly correction:(semi-cirl/sec)
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91 | double m0; //< Mean anomaly @ ref.time:(semi-circle)
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92 | double cuc; //< Cos-harmonic correction term, argument of Latitude:(radians)
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93 | double e; //< Eccentricity
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94 | double cus; //< Sin-harmonic correction term, argument of Latitude:(radians)
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95 | double roota; //< Square root of semi-major axis:(m ^1/2)
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96 | double cic; //< Cos-harmonic correction term, angle of inclination:(radians)
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97 | double omega0; //< Lon. of Asc. node at weekly epoch: (semi-circle)
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98 | double cis; //< Sin-harmonic correction term, angle of Inclination:(radians)
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99 | double i0; //< Inclination angle at Ref.time: (semi-circle)
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100 | double crc; //< Cos-harmonic correction term, orbit radius:(meters)
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101 | double omega; //< Argument of Perigee:(semi-circle)
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102 | double omegadot; //< Rate of right ascension: (semi-circle/sec)
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103 | double idot; //< Rate of inclination angle: (semi-circle/sec)
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104 | short svaccu; //< SV accuracy (0-15)
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105 | short fit; //< Curve fit interval (0-1)
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106 | short cReserved1; //< Not used - yet
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107 | short health; //< 0 if healthy, else unhealthy
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108 | short cReserved2; //< Not used - yet
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109 | short SVEnable; //< Not used - yet
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110 | } ;
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111 |
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112 | const double lambda1 = 0.1902936727984; // [m]
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113 | const double lambda2 = 0.2442102134241; // [m]
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114 | const unsigned glonass_svid = 45;
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115 |
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116 | class GPSDecoder {
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117 | public:
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118 | int iPCode; // pointer for CA or P code on L1
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119 |
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120 | virtual void Decode(char* _ptrBuffer=NULL, int _nBufLen=0) = 0;
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121 | virtual ~GPSDecoder() {}
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122 | typedef list<Observation*> ObsList_t;
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123 | typedef list<Ephemeris*> EphList_t;
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124 |
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125 | ObsList_t m_lObsList;
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126 | EphList_t m_lEphList;
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127 |
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128 | } ;
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129 |
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130 | #endif
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