Research Article
Analysis of Filtering Methods for Satellite Autonomous Orbit Determination Using Celestial and Geomagnetic Measurement
Table 1
Performance of celestial OD system under different sampling intervals.
| Sampling interval | RMS (after convergence) | Maximum (after convergence) | Position error/m | Velocity error/m/s | Position error/m | Velocity error/m/s |
| | EKF | 203.318211 | 0.196622 | 532.987272 | 0.486705 | UKF | 161.312723 | 0.162900 | 357.545600 | 0.407503 | UPF | 159.756079 | 0.160780 | 354.555359 | 0.402378 |
| | EKF | 271.640953 | 0.287641 | 703.000581 | 0.613708 | UKF | 245.939302 | 0.219864 | 593.829098 | 0.563749 | UPF | 245.229683 | 0.219566 | 593.802048 | 0.563396 |
| | EKF | 934.238939 | 0.976641 | 2457.895170 | 2.348656 | UKF | 736.876288 | 0.699942 | 2322.291896 | 2.302674 | UPF | 735.166932 | 0.698808 | 2314.761249 | 2.294924 |
|
|