Review Article
Software-Defined Radio Technologies for
GNSS Receivers: A Tutorial Approach to a Simple
Design and Implementation
Table 2
Summary of the main parameters for GLONASS, GPS, and SBAS signals.
| | Signal parameter of feature | GLONASS | GPS | SBAS |
| | Multiple access technique | | FDMA | CDMA | CDMA | | Carrier frequency (MHz) | | |
1575.42
|
1575.42
| | | 1227.60 | — | | Code length (chip) | C/A | 511 | 1023 | 1023 | | P | 5.11·106 | 2.35·1014 | — | | Code rate (Mchip/s) | C/A | 0.511 | 1.023 | 1.023 | | P | 5.11 | 10.23 | — | | Navigation data | data rate | 50 | 50 | 500 (coded) | | (bit/s) | 250 (uncoded) | | data | BPSK | BPSK | BPSK | | modulation | Manchester | NRZ | NRZ |
|
|
