Table 2 The data processing strategy of PPP
Items | Strategies |
|---|---|
GNSS system | GPS and GLObal NAvigation Satellite System (GLONASS) |
Observational model | Ionospheric-Free (IF) combination |
Elevation mask | 10° |
Observation weight | Elevation-dependent weight model |
Satellite antenna phase center | Corrected by igs14.atx |
Receiver antenna phase center | Corrected by igs14.atx |
Ambiguity resolution | No |