Table 1 Information of the BDS-2 and BDS-3 signals
From: PPP models and performances from single- to quad-frequency BDS observations
| Â | Signals | Carrier frequency (MHz) | Modulation |
|---|---|---|---|
BDS-2 | B1I | 1561.098 | Quadrature phase-shift keying (QPSK) |
B2I | 1207.140 | QPSK | |
B3I | 1268.520 | Binary phase-shift keying (BPSK) | |
BDS-3 | B1I | 1561.098 | BPSK |
B3I | 1268.520 | BPSK | |
B1C | 1575.420 | Binary offset carrier (BOC) Quadrature Multiplexed Binary Offset Carrier (QMBOC) | |
B2a | 1176.450 | BPSK | |
B2b | 1207.140 | BPSK |