Galileo OS SIS ICD.indd - GSA - Europa
Galileo OS SIS ICD.indd - GSA - Europa
Galileo OS SIS ICD.indd - GSA - Europa
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Subframe 12<br />
4.2.4. F/NAV Page Contents<br />
Table 30. F/NAV Frame Layout<br />
The following tables specify the contents of the F/NAV pages above allocated (see<br />
Chapter 5 for a description of the F/NAV pages contents).<br />
Page Type 1: SVID, Clock correction, <strong>SIS</strong>A, Ionospheric correction, BGD, GST, Signal<br />
health and Data validity status<br />
Type=1<br />
SV ID<br />
IODnav<br />
Clock<br />
correction<br />
t0c af0 af1 af2 <strong>SIS</strong>A<br />
Ionospheric correction<br />
ai0 ai1 Az Ionospheric<br />
disturbance fl ag<br />
a i2<br />
Region 1<br />
Region 2<br />
Region 3<br />
Region 4<br />
Region 5<br />
BGD(E1,E5a)<br />
E5aHS © European Union 2010<br />
Document subject to terms of use and disclaimers p. ii-iii<br />
OD <strong>SIS</strong> <strong>ICD</strong>, Issue 1, February 2010<br />
GST<br />
WN<br />
TOW<br />
E5aDVS Spare<br />
CRC<br />
Tail<br />
Total<br />
(bits)<br />
6 6 10 14 31 21 6 8 11 11 14 1 1 1 1 1 10 2 12 20 1 26 24 6 244<br />
Page Type 2: Ephemeris (1/3) and GST<br />
Type=2<br />
IODnav<br />
M 0<br />
Table 31. Bits Allocation for F/NAV Page Type 1<br />
Ephemeris (1/3) GST<br />
● ●<br />
Ω<br />
e<br />
a 1/2<br />
Ω 0<br />
i<br />
WN<br />
TOW<br />
CRC<br />
Tail<br />
Total<br />
(bits)<br />
6 10 32 24 32 32 32 14 12 20 24 6 244<br />
Page Type 3: Ephemeris (2/3) and GST<br />
Type=3<br />
Page<br />
Type<br />
IODnav<br />
1<br />
i 0<br />
ω<br />
Table 32. Bits Allocation for F/NAV Page Type 2<br />
∆n<br />
Ephemeris (2/3) GST<br />
C uc<br />
C us<br />
C rc<br />
Page Content<br />
SVID, clock correction, <strong>SIS</strong>A, Ionospheric correction, BGD, Signal health status,<br />
GST and Data validity status<br />
2 Ephemeris (1/3) and GST<br />
3 Ephemeris (2/3) and GST<br />
4 Ephemeris (3/3), GST-UTC conversion, GST-GPS Conversion and TOW<br />
6 Almanac for satellite (k+16) part 2 and almanac for satellite (k+17)<br />
C rs<br />
t 0e<br />
WN<br />
TOW<br />
Spare<br />
CRC<br />
Tail<br />
Total<br />
(bits)<br />
6 10 32 32 16 16 16 16 16 14 12 20 8 24 6 244<br />
Table 33. Bits Allocation for F/NAV Page Type 3<br />
31
Change language