Research Article
Multi-GNSS Fast Precise Point Positioning with Multi-Frequency Uncombined Model and Cascading Ambiguity Resolution
Table 1
The used multi-frequency signals of GPS, Galileo, BDS-2, and BDS-3.
| | Systems | No. | Signals | Frequencies (MHz) |
| | GPS | 1 | L1 | 1575.420 | | 2 | L2 | 1227.600 | | 3 | L5 | 1176.450 |
| | Galileo | 1 | E1 | 1575.420 | | 2 | E5a | 1176.450 | | 3 | E5b | 1207.140 | | 4 | E6 | 1278.750 |
| | BDS-2 | 1 | B1I | 1561.098 | | 2 | B2I | 1207.140 | | 3 | B3I | 1268.520 |
| | BDS-3 | 1 | B1C | 1575.420 | | 2 | B1I | 1561.098 | | 3 | B2a | 1176.450 | | 4 | B3I | 1268.520 |
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