TABLE 2
Processing Strategy for the Estimated Parameters
| Parameter | Strategy |
|---|---|
| Receiver coordinates | Estimated with process noise equivalent to 100 km/h |
| Receiver reference coordinates | IGS SINEX positions |
 and  | Estimated as white noise processes |
| δt12, δt13 δt14, IFBr,3, and IFBr,4 | Estimated as white noise processes |
| Tropospheric delay | Dry: GMF model and mapping function (Kouba, 2009). |
Wet: estimated as a random walk process with process noise of 0.05  | |
| Ionospheric delays | Estimated as white noise processes |
| Ambiguities | Estimated as constants on each continuous arc |
| Elevation angle cut-off | 7° |
| Weighting strategy | Elevation dependent weighting:  with σ90 equal to 0.1 m and 0.001 m for the pseudorange and carrier-phase measurements, respectively, and el being the elevation angle. a and b are determined based on a residual and measurement quality analysis and set to 0.15 and 0.85, respectively. |