Интерфейсный документ GPS, страница 2
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APPENDIX I. LETTERS OF EXCEPTION...................................................................................................5710.1 Scope ...........................................................................................................................................................5710.2 Applicable Documents ................................................................................................................................57IS-GPS-200D7 Dec 2004viii10.3 Letters of Exception ....................................................................................................................................5720. APPENDIX II.
GPS NAVIGATION DATA STRUCTURE FOR DATA, D(t) ...........................................6520.1 Scope ...........................................................................................................................................................6520.2 Applicable Documents. ...............................................................................................................................6520.2.1 Government Documents....................................................................................................................6520.2.2 Non-Government Documents............................................................................................................6520.3 Requirements...............................................................................................................................................6720.3.1 Data Characteristics...........................................................................................................................6720.3.2 Message Structure .............................................................................................................................6720.3.3 Message Content ...............................................................................................................................8120.3.3.1 Telemetry Word ......................................................................................................................8120.3.3.2 Handover Word (HOW)..........................................................................................................8120.3.3.3 Subframe 1 ..............................................................................................................................8320.3.3.3.1 Subframe 1 Content.......................................................................................................8320.3.3.3.2 Subframe 1 Parameter Characteristics ..........................................................................8620.3.3.3.3 User Algorithms for Subframe 1 Data ..........................................................................8620.3.3.4 Subframes 2 and 3 ...................................................................................................................9320.3.3.4.1 Content of Subframes 2 and 3 .......................................................................................9320.3.3.4.2 Subframe 2 and 3 Parameter Characteristics.................................................................9520.3.3.4.3 User Algorithm for Ephemeris Determination ..............................................................9520.3.3.4.4 NMCT Validity Time..................................................................................................10120.3.3.5 Subframes 4 and 5 .................................................................................................................10220.3.3.5.1 Content of Subframes 4 and 5 .....................................................................................10220.3.3.5.2 Algorithms Related to Subframe 4 and 5 Data............................................................11720.3.4 Timing Relationships ......................................................................................................................12620.3.4.1 Paging and Cutovers..............................................................................................................12620.3.4.2 SV Time vs.
GPS Time .........................................................................................................12620.3.4.3 Speed of Light .......................................................................................................................12620.3.4.4 Data Sets................................................................................................................................12720.3.4.5 Reference Times....................................................................................................................13020.3.5 Data Frame Parity............................................................................................................................13320.3.5.1 SV/CS Parity Algorithm........................................................................................................13320.3.5.2 User Parity Algorithm ...........................................................................................................13330.
APPENDIX III. GPS NAVIGATION DATA STRUCTURE FOR CNAV DATA, DC(t)..........................13630.1 Scope .........................................................................................................................................................137IS-GPS-200D7 Dec 2004ix30.2 Applicable Documents.
.............................................................................................................................13730.2.1 Government Documents..................................................................................................................13730.2.2 Non-Government Documents..........................................................................................................13730.3 Requirements.............................................................................................................................................13830.3.1 Data Characteristics.........................................................................................................................13930.3.2 Message Structure ...........................................................................................................................13930.3.3 Message Content .............................................................................................................................13930.3.3.1 Message Type 10 and 11 Ephemeris and Health Parameters ...............................................15530.3.3.1.1 Message Type 10 and 11 Ephemeris and Health Parameter Content .........................15530.3.3.1.2 Message Type 10 and 11 Ephemeris Parameter Characteristics .................................15830.3.3.1.3 User Algorithm for Determination of SV Position......................................................15830.3.3.2 Message Types 30 Through 37 SV Clock Correction Parameters.
.......................................16330.3.3.2.1 Message Type 30 Through 37 SV Clock Correction Parameter Content....................16330.3.3.2.2 Clock Parameter Characteristics .................................................................................16330.3.3.2.3 User Algorithms for SV Clock Correction Data .........................................................16330.3.3.2.4 SV Clock Accuracy Estimates ....................................................................................16530.3.3.3 Message Type 30 Ionospheric and Group Delay Correction Parameters ..............................16830.3.3.3.1 Message Type 30 Ionospheric and Group Delay Correction Parameter Content........16830.3.3.4 Message Types 31, 12, and 37 Almanac Parameters.............................................................17130.3.3.4.1 Almanac Reference Week...........................................................................................17130.3.3.4.2 Almanac Reference Time............................................................................................17130.3.3.4.3 SV PRN Number.........................................................................................................17130.3.3.4.4 Signal Health (L1/L2/L5)............................................................................................17130.3.3.4.5 Midi Almanac Parameter Content...............................................................................17230.3.3.4.6 Reduced Almanac Parameter Content.........................................................................17230.3.3.5 Message Type 32 Earth Orientation Parameters (EOP) ........................................................17530.3.3.5.1 EOP Content ...............................................................................................................17530.3.3.6 Message Type 33 Coordinated Universal Time (UTC) Parameters ......................................17930.3.3.6.1 UTC Parameter Content ..............................................................................................17930.3.3.6.2 UTC and GPS Time ....................................................................................................17930.3.3.7 Message Types 34, 13, and 14 Differential Correction Parameters ......................................18130.3.3.7.1 Differential Correction Parameters Content................................................................18130.3.3.7.3 Application of Clock-Related DC Data.......................................................................18430.3.3.7.4 Application of Orbit-Related DC Data........................................................................18430.3.3.7.5 SV Differential Range Accuracy Estimates ................................................................186IS-GPS-200D7 Dec 2004x30.3.3.8 Message Type 35 GPS/GNSS Time Offset...........................................................................18730.3.3.8.1 GPS/GNSS Time Offset Parameter Content ...............................................................18730.3.3.8.2 GPS and GNSS Time ..................................................................................................18730.3.3.9 Message Types 36 and 15 Text Messages.............................................................................18830.3.4 Timing Relationships ......................................................................................................................18930.3.4.1 Paging and Cutovers..............................................................................................................18930.3.4.2 SV Time vs.
