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

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DESCRIPTIONDATEIS-GPS-800, Initial ReleaseIS-GPS-800, Rev A04 Sep 20088 June 2010DISTRIBUTION A. APPROVED FOR PUBLIC RELEASE; DISTRIBUTION IS UNLIMITEDAPPROVALSAUTHORIZED SIGNATURES REPRESENTING DATESignature on FileGPS Wing (GPSW)Space & Missiles Center (SMC) – GPSW LAAFB8 June 2010INTERFACE SPECIFICATIONTHIS DOCUMENT SPECIFIES TECHNICALREQUIREMENTS AND NOTHING HEREINCONTAINED SHALL BE DEEMED TO ALTER THETERMS OF ANY CONTRACT OR PURCHASEORDER BETWEEN ALL PARTIES AFFECTED.ICD TITLENavstar GPS Space Segment/User Segment L1CInterfacesPrepared by:Science Applications International CorporationGPSW SE&I300 N. Sepulveda Blvd, Suite 3000.El Segundo, CA 90245CODE IDENT NO.4WNC1REVADOCUMENT NO.IS-GPS-800SHEET IiiIS-GPS-800A8 June 2010
REVISION RECORDLTR DESCRIPTION DATE APPROVEDNC Initial Release 04 Sept 2008 04 Sept 2008AIncorporates Phase Variance language revision, attitude error fromcoverage angle specifications, addition of Space Service Volume(SSV) language, and addition of Integrity Flag description language8 June 2010 8 June 2010N/A SE&I Tech Pubs 29 July 2010iiiIS-GPS-800A8 June 2010
Page 1: IS-GPS-800A8 June 2010GLOBAL POSITI
Page 5 and 6: 3.2.3.3 Cyclic Redundancy Check ...
Page 7 and 8: LIST OF FIGURESFigure 3.2-1. Genera
Page 9 and 10: 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
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3.5.3.10.1 Integrity Status Flag (I
Page 62 and 63:
The ionospheric data shall be updat
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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
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MSBCDC = Clock Differential Correct
Page 72 and 73:
3.5.4.5 Subframe 3, Page 6 - TextSu
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5. RESERVED66 IS-GPS-800A8 June 201
Page 76 and 77:
LSF - Leap Seconds FutureL1C - Comm
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Table 6.2-1.Legendre Sequence (Octa
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Table 6.2-2 LDPC Submatrix A for Su
Page 82 and 83:
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Page 86 and 87:
Page 88 and 89:
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 110 and 111:
Page 112 and 113:
Page 114 and 115:
PRNSignalNo.Table 6.3-2. Additional
Page 116 and 117:
PRNSignalNo.Table 6.3-2 Additional
Page 118 and 119:
Page 120 and 121:
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IS-GPS-800A - US Coast Guard Navigation Center

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