IS-GPS-800A - US Coast Guard Navigation Center

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MSBCDC = Clock Differential CorrectionLSB1 9PRN ID.8 BITSa f0.13 BITS22 30 34a f1.8 BITSUDRA.5 BITSMSB1 9EDC = Ephemeris Differential Correction23LSB36PRN ID.8 BITSΔ.14 BITSΔ.14 BITSMSBLSB37 52Δ.15 BITSΔi.12 BITS63.MSBLSB64 76Δ12 BITSΔA12 BITS88 92UDRA5 BITSFigure 3.5-10. Differential Correction Data Packet62 IS-GPS-800A8 June 2010
Table 3.5-8.Differential Correction ParametersParameterNo. ofBits**ScaleFactor(LSB)EffectiveRange***UnitsPRN IDa f0a f1UDRAiAUDRASV Clock Bias CorrectionSV Clock Drift CorrectionUser Differential RangeAccuracy IndexAlpha Correction to EphemerisParametersBeta Correction to EphemerisParametersGamma Correction to EphemerisParametersAngle of Inclination CorrectionAngle of Right AscensionCorrectionSemi-Major CorrectionChange Rate of User DifferentialRange Accuracy Index.813*8*5*14*14*15*12*12*12*5*2 -352 -512 -342 -342 -322 -32see textsecondsseconds/secondsee textdimensionlessdimensionlesssemi-circlessemi-circles2 -32semi-circles2 -9 meterssee text* Parameters so indicated are in two’s complement notation;** See Figure 3.5-6 for complete bit allocation in subframe 3, page 5;*** Unless otherwise indicated in this column, effective range is the maximum range attainable withindicated bit allocation and scale factor.63 IS-GPS-800A8 June 2010
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IS-GPS-800A8 June 2010GLOBAL POSITI
Page 3 and 4:
REVISION RECORDLTR DESCRIPTION DATE
Page 5 and 6:
3.2.3.3 Cyclic Redundancy Check ...
Page 7 and 8:
LIST OF FIGURESFigure 3.2-1. Genera
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1. INTRODUCTION1.1 ScopeThis Interf
Page 11 and 12:
3. SIGNAL REQUIREMENTSThe requireme
Page 13 and 14:
Carriers of the two L1C components
Page 15 and 16:
3.2.2 PRN Code CharacteristicsThe c
Page 17 and 18:
The overlay codes are derived from
Page 19 and 20: 3.2-2 L1C Ranging Codes Parameter A
Page 21 and 22: GPS PRNSignal No.3.2-3 L1C O Overla
Page 23 and 24: FIXED LENGTH-10223 LEGENDRE SEQUENC
Page 25 and 26: 3.2.2.2 Non-Standard CodesThe non-s
Page 27 and 28: corresponding to MSB = 0. (A SV tra
Page 29 and 30: This code has the following charact
Page 31 and 32: 3.2.3.5 InterleavingThe 1748 encode
Page 33 and 34: 3.3 Signal ModulationThe signals mo
Page 35 and 36: Bit valueL1C DbitstreamSubcarrier s
Page 37 and 38: 3.5 Message DefinitionAs shown in F
Page 40 and 41: DIRECTION OF DATA FLOW FROM SV100 B
Page 46 and 47: 3.5.3 Subframe 2Subframe 2 provides
Page 48 and 49: Table 3.5-1. Subframe 2 Parameters
Page 50 and 51: 3.5.3.1 Transmission Week NumberBit
Page 52 and 53: 3.5.3.6 Ephemeris Parameter Charact
Page 54 and 55: Table 3.5-2. Elements of Coordinate
Page 56 and 57: The user shall use the broadcast UR
Page 58 and 59: where, ISC L1CD is provided to the
Page 60 and 61: 3.5.3.10.1 Integrity Status Flag (I
Page 62 and 63: The ionospheric data shall be updat
Page 64 and 65: 3.5.4.2.3 User Algorithm for Applic
Page 66 and 67: transmitted by the SVs will degrade
Page 68 and 69: Table 3.5-7.Midi Almanac Parameters
Page 72 and 73: 3.5.4.5 Subframe 3, Page 6 - TextSu
Page 74 and 75: 5. RESERVED66 IS-GPS-800A8 June 201
Page 76 and 77: LSF - Leap Seconds FutureL1C - Comm
Page 78 and 79: Table 6.2-1.Legendre Sequence (Octa
Page 80 and 81: Table 6.2-2 LDPC Submatrix A for Su
Page 90 and 91: Table 6.2-3. LDPC Submatrix B for S
Page 92 and 93: Table 6.2-7. LDPC Submatrix T for s
Page 94 and 95: Table 6.2-7. LDPC Submatrix T for s
Page 96 and 97: Table 6.2-8. LDPC Submatrix A for s
Page 98 and 99: Table 6.2-8. LDPC Submatrix A for s
Page 100 and 101: Table 6.2-9. LDPC Submatrix B for S
Page 102 and 103: Table 6.2-13. LDPC Submatrix T for
Page 104 and 105: Table 6.2-16. Number of 1’s in LD
Page 106 and 107: 6.3 Supporting Material6.3.1 Additi
Page 108 and 109: Table 6.3-1 Additional L1C Ranging
Page 114 and 115: PRNSignalNo.Table 6.3-2. Additional
Page 116 and 117: PRNSignalNo.Table 6.3-2 Additional
Page 118 and 119: PRNSignalNo.Table 6.3-2 Additional
Page 120 and 121:
PRNSignalNo.Table 6.3-2 Additional
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