IS-GPS-705J
01-AUG-2022
iv
3.3.2 PRN Code Characteristics.................................................................................................................... 12
3.3.2.1 Code Structure .............................................................................................................................. 13
3.3.2.2 Code Generation ........................................................................................................................... 14
3.3.2.3 Q5 Synchronization Sequence ...................................................................................................... 17
3.3.3 Navigation Data ................................................................................................................................... 17
3.3.3.1 Navigation Data Modulation......................................................................................................... 17
3.3.3.1.1 Forward Error Correction ...................................................................................................... 17
3.3.3.1.2 Neuman-Hofman Code .......................................................................................................... 18
3.3.4 GPS Time and SV Z-Count ................................................................................................................. 19
4 NOT APPLICABLE .......................................................................................................................................... 21
5 NOT APPLICABLE .......................................................................................................................................... 21
6 NOTES ............................................................................................................................................................... 22
6.1 Acronyms .................................................................................................................................................... 22
6.2 Definitions................................................................................................................................................... 24
6.2.1 User Range Accuracy .......................................................................................................................... 24
6.2.2 SV Block Definitions ........................................................................................................................... 24
6.2.2.1 Developmental SVs ...................................................................................................................... 24
6.2.2.2 Operational SVs ............................................................................................................................ 24
6.2.2.2.1 Block II SVs (Decommissioned) ........................................................................................... 25
6.2.2.2.2 Block IIA SVs (Decommissioned) ........................................................................................ 25
6.2.2.2.3 Block IIR SVs ........................................................................................................................ 25
6.2.2.2.4 Block IIR-M SVs ................................................................................................................... 25
6.2.2.2.5 Block IIF SVs ........................................................................................................................ 25
6.2.2.2.6 GPS III SVs............................................................................................................................ 25
6.2.2.2.7 GPS IIIF SVs ......................................................................................................................... 25
6.2.3 Operational Interval Definitions .......................................................................................................... 25
6.2.4 GPS Week Number .............................................................................................................................. 25
6.2.5 Reserved Data ...................................................................................................................................... 25
6.2.6 Valid Range ......................................................................................................................................... 25
6.2.7 Invalid Range ....................................................................................................................................... 26
