| Estimator |
All the Multi-GNSS observations are processed together in one common least square estimator |
| Observations |
Raw carrier phase and pseudorange observations; BeiDou + Galileo + GLONASS + GPS, 74 satellites in orbits |
| Signal selection |
GPS: L1/L2; GLONASS: L1/L2; BeiDou: B1/B2; Galileo: E1/E5a |
| Sampling rate |
30 s |
| Elevation cutoff |
7° |
| Weight for observations |
Elevation dependent weight |
| Satellite orbit |
Fixed |
| Satellite clock |
Fixed |
| Earth rotation parameter |
Fixed |
| Phase-windup effect |
Corrected |
| Station displacement |
Solid Earth tide, pole tide, ocean tide loading IERS Convention 2003 |
| Satellite antenna phase center |
Corrected using MGEX and IGS values |
| Receiver antenna phase center |
Corrected |
| Station coordinates |
Estimated in both static and kinematic modes |
| Phase ambiguities |
Estimated as constant for each arc |
| Tropospheric delay |
Initial model + random-walk process |
| Ionospheric delay |
Estimated as parameters with constraints of equation (12)
|
| Receiver clock |
Estimated, white noise |
| ISB and IFB |
Estimated as constant, GPS as reference |
