Galileo OS SIS ICD (797928), страница 3
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7911.2Primary codes for the E5a-I signal component...................................................... 8111.3Primary codes for the E5a-Q signal component .................................................. 10311.4Primary codes for the E5b-I signal component.................................................... 12511.5Primary codes for the E5b-Q signal component .................................................. 14711.6Primary codes for the E1-B signal component.....................................................
16911.7Primary codes for the E1-C signal component..................................................... 1818H89H90H91H92H94H93H271H27H273H274H275H276H©, 2006, European Space Agency / Galileo Joint UndertakingDocument subject to terms of use and disclaimers p. 2-4.27HReference:Issue:Revision:Date:GAL OS SIS ICD/D.0Draft023/05/2006Page9Index of FiguresFigure 1: Space Vehicle / Navigation User Interface...............................................................
13Figure 2: Galileo Frequency Plan............................................................................................. 19Figure 3: Galileo frequency spectrum...................................................................................... 21Figure 4: Modulation scheme for the E5 signal ....................................................................... 24Figure 5: One period of the two subcarrier functions involved in AltBOC modulation.......... 27Figure 6: 8-PSK phase-state diagram of E5 AltBOC signal .................................................... 27Figure 7: Modulation scheme for the E6 signal ....................................................................... 29Figure 8: Modulation scheme for the E1 signal .......................................................................
30Figure 9: Tiered codes generation............................................................................................ 34Figure 10: Linear shift register based code generator for truncated and.................................. 35Figure 11: Code register feedback taps representation (example for E5a-I)............................ 36Figure 12: Start value representation for Base-register 2......................................................... 36Figure 13: General page layout ................................................................................................
46Figure 14: Convolutional coding scheme................................................................................. 48Figure 15: F/NAV Message Structure...................................................................................... 49Figure 16: Example for the translation of logical (binary) spreading code into hexadecimalrepresentation..................................................................................................................... 7995H278H96H279H97H280H98H281H9H28H10H283H10H284H102H285H103H286H104H287H105H28H106H289H107H290H108H291H109H29H10H293H©, 2006, European Space Agency / Galileo Joint UndertakingDocument subject to terms of use and disclaimers p. 2-4.Reference:Issue:Revision:Date:GAL OS SIS ICD/D.0Draft023/05/2006Page10Index of TablesTable 1: Carrier Frequency per Signal .....................................................................................
19Table 2: Galileo signals Rx reference bandwidths.................................................................. 20Table 3: Primary Galileo Navigation Signal Parameters ......................................................... 22Table 4: Signal description parameters .................................................................................... 23Table 5: E5 chip rates and subcarrier rates .............................................................................. 25Table 6: E5 symbol rates.......................................................................................................... 25Table 7: AltBOC subcarrier coefficients..................................................................................
26Table 8: Look-up table for AltBOC phase states in dependency of......................................... 28Table 9: E6 chip rates and subcarrier rates .............................................................................. 29Table 10: E6 symbol rates........................................................................................................ 29Table 11: E1 chip- and subcarrier-rates ...................................................................................
31Table 12: E1 symbol rates........................................................................................................ 31Table 13: Logic to Signal Level Assignment........................................................................... 31Table 14: Additional losses due to Rx filtering........................................................................ 32Table 15: Code lengths.............................................................................................................
33Table 16: Primary Codes Specification.................................................................................... 37Table 17: Base register 2 start values and first code chip for E5a-I......................................... 38Table 18: Base register 2 start values and first code chip for E5a-Q .......................................
39Table 19: Base register 2 start values and first code chip for E5b-I ........................................ 40Table 20: Base register 2 start values and first code chips for E5b-Q ..................................... 41Table 21: Secondary code sequences (Part 1).......................................................................... 43Table 22: Secondary code sequences (Part 2).......................................................................... 44Table 23: Secondary code assignment .....................................................................................
45Table 24: Message allocation and general data content........................................................... 46Table 25: Synchronisation patterns .......................................................................................... 47Table 26: Data coding parameters............................................................................................ 47Table 27: Interleaving parameters............................................................................................ 48Table 28: F/NAV E5a-I page layout ........................................................................................
50Table 29: F/NAV E5a-I message data packet transmission sequence ..................................... 52Table 30: GST/Sub-frame concordance................................................................................... 54Table 31: Bits allocation for F/NAV E5a-I page type 1 .......................................................... 54Table 32: Bits allocation for F/NAV E5a-I page type 2: ephemeris (1/3) with GST .............. 54Table 33: Bits allocation for F/NAV E5a-I page type 3: ephemeris (2/3) with GST .............. 55Table 34: Bits allocation for F/NAV E5a-I page type 4 ..........................................................
55Table 35: Bits allocation for F/NAV E5a-I page type 5 .......................................................... 551H294H12H295H13H296H14H297H15H298H16H29H17H30H18H301H19H302H120H30H12H304H12H305H123H306H124H307H125H308H126H309H127H310H128H31H129H312H130H31H13H314H132H315H13H316H134H317H135H318H136H319H137H320H138H321H139H32H140H32H14H324H142H325H143H326H14H327H145H328H©, 2006, European Space Agency / Galileo Joint UndertakingDocument subject to terms of use and disclaimers p. 2-4.Reference:Issue:Revision:Date:GAL OS SIS ICD/D.0Draft023/05/2006Page11Table 36: Bits allocation for F/NAV E5a-I page type 6 ..........................................................
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