| 1 | // -*- C++ -*-
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| 2 | //
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| 3 | // $Id: GPSDecoder.h,v 1.2 2006/10/06 10:51:43 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 | ,unsigned _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 | unsigned 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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