Table 1 Information on PPP time transfer with the PPP-B2b correction
From: A new receiver clock model to enhance BDS-3 real-time PPP time transfer with the PPP-B2b service
Estimator | Kalman |
|---|---|
Signals | GPS: L1/L2 BDS-3: B1C/B2a |
Phase Center Variation (PCV) and Phase Center Offset (PCO) | “Atx” file |
Receiver clock offset | White noise (Scheme 1) |
The clock model (Scheme 2) | |
Precise products | Broadcast ephemeris (CNAV1 or LNAV) + PPP-B2b correction |
IGS final products | |
Tropospheric delay | ZHD: corrected (Saastamoinen, 1972) |
ZWD: estimated | |
Tidal displacement | Corrected |
Phase ambiguities | Estimate as constant |
Receiver coordinates | Estimate as constant |