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

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PRNSignalNo.Table 6.3-2 Additional L1C O Overlay Code Parameter Assignments (Sheet 7 of 7)S1 PolynomialCoefficient(Octal) *(m i, j )S1 InitialCondition(Octal † ) **S2 InitialCondition(Octal † ) **Starting 11Symbols(Octal † )Ending 11Symbols(Octal † )190 5403 3513 2257 1744 1676191 5403 1135 2331 3204 2226192 5403 0566 0276 0710 0231193 5403 0500 3261 3761 1676194 5403 0254 1760 1534 1620195 5403 3445 0430 3075 2340196 5403 2542 3477 1135 3477197 5403 1257 1676 0421 3241198 6501 0211 1636 1427 3011199 6501 0534 2411 2125 0674200 6501 1420 1473 0053 1746201 6501 3401 2266 1667 1110202 6501 0714 2104 2610 1415203 6501 0613 2070 2663 2627204 6501 2475 1766 3313 2471205 6501 2572 0711 2263 0057206 6501 3265 2533 1756 3364207 6501 1250 0353 1103 1762208 6501 1711 1744 0055 2317209 6501 2704 0053 2757 0755210 6501 0135 2222 2317 1145NOTES:* The polynomial coefficient is given as m 11 , … , m 0 . Thus octal 5111 corresponds to thegenerator polynomial 1 + x 3 + x 6 + x 9 + x 11 .** The initial condition is given as n 11 , … , n 1 . (See Figure 3.2-2)†The initial bit value 0 is dropped to obtain 11 symbols. Thus octal 3035 corresponds to 11values 1 1 0 0 0 0 1 1 1 0 1.112 IS-GPS-800A8 June 2010
6.3.2 Pre-Operational UseBefore any new signal or group of signals (e.g., L2C, L5, M, L1C, etcetera) is declared operational, the availabilityof and/or the configuration of the broadcast signal or group of signals may not comply with all requirements of therelevant IS or ICD. For example, the pre-operational broadcast of L2C signals from the IIR-M satellites did notinclude any NAV or CNAV data as required by IS-GPS-200. Pre-operational use of any new signal or group ofsignals is at the users own risk.113 IS-GPS-800A8 June 2010
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IS-GPS-800A8 June 2010GLOBAL POSITI
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REVISION RECORDLTR DESCRIPTION DATE
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3.2.3.3 Cyclic Redundancy Check ...
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LIST OF FIGURESFigure 3.2-1. Genera
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1. INTRODUCTION1.1 ScopeThis Interf
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3. SIGNAL REQUIREMENTSThe requireme
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Carriers of the two L1C components
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3.2.2 PRN Code CharacteristicsThe c
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The overlay codes are derived from
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3.2-2 L1C Ranging Codes Parameter A
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GPS PRNSignal No.3.2-3 L1C O Overla
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FIXED LENGTH-10223 LEGENDRE SEQUENC
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3.2.2.2 Non-Standard CodesThe non-s
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corresponding to MSB = 0. (A SV tra
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This code has the following charact
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3.2.3.5 InterleavingThe 1748 encode
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3.3 Signal ModulationThe signals mo
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Bit valueL1C DbitstreamSubcarrier s
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3.5 Message DefinitionAs shown in F
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DIRECTION OF DATA FLOW FROM SV100 B
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3.5.3 Subframe 2Subframe 2 provides
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Table 3.5-1. Subframe 2 Parameters
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3.5.3.1 Transmission Week NumberBit
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3.5.3.6 Ephemeris Parameter Charact
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Table 3.5-2. Elements of Coordinate
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The user shall use the broadcast UR
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where, ISC L1CD is provided to the
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3.5.3.10.1 Integrity Status Flag (I
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The ionospheric data shall be updat
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3.5.4.2.3 User Algorithm for Applic
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transmitted by the SVs will degrade
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Table 3.5-7.Midi Almanac Parameters
Page 70 and 71: MSBCDC = Clock Differential Correct
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
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IS-GPS-800A - US Coast Guard Navigation Center

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