Table 3 Power spectral densities and noise characterizations for CONT campaigns. For both KF and LSM ZWD time series, the PSD Φ in cm2/day, obtained by assuming a random walk process and fitting the ASD data accordingly, are shown. Additionally, the slope k of the ASD fit is shown, indicating the type of noise
From: Tropospheric delay determination by Kalman filtering VLBI data
Data set | Φ KF | k KF | Φ LSM | k LSM |
|---|---|---|---|---|
CONT02 | 12.7 | −0.44 | 14.8 | −0.53 |
CONT05 | 23.9 | −0.45 | 27.7 | −0.54 |
CONT08 | 22.8 | −0.48 | 25.3 | −0.55 |
CONT11 | 19.8 | −0.48 | 23.7 | −0.58 |
CONT14 | 15.6 | −0.49 | 17.2 | −0.56 |
Average | 19.0 | −0.47 | 21.7 | −0.55 |