Table 2.1 Main Characteristics of GPS Signals Frequency Band E1/L1
Signal name Carrier frequency (MHz) Multiple-access technique Signal bandwidth (MHz) Services
PRN codę ratę (Mcps)
PRN codę length (c)
NAV message data (bps) NAV message symbols (sps) Modulation
GPS L1
1575.42
CDMA
20.46
PPSa, SPS
1.023 (C/A), 10.23 (P)
1023 (C/A), 2.35-1014 (P)
50
50
BPSK
3 Authorized users only.
bOnly Błock IIR-M SVs and futurę SVs.
c Length of thc 12 CM codo (scc Scction 2.1.1.2 for furthcr dctaiłs).
L2 |
E5/L5 |
GPSL2 |
GPSL5 |
1227.60 |
1176.45 |
CDMA |
CDMA |
20.46 |
24 |
PPSa, SPSb |
SPS |
0.5115 (C/A)b, 10.23 (P) |
10.23 |
10230 (C/A)c, 2.35-1014 (P) |
10230 |
50c |
25 |
50 |
50 |
BPSK |
BPSK |