Research Article
Analysis of Filtering Methods for Satellite Autonomous Orbit Determination Using Celestial and Geomagnetic Measurement
Table 4
Performance of geomagnetic OD system under different noise distributions.
| | Noise distribution | RMS (after convergence) | Maximum (after convergence) | | Position error/m | Velocity error/m/s | Position error/m | Velocity error/m/s |
| Normal
distribution | EKF | 1481.673752 | 1.358867 | 2851.660177 | 2.607626 | | UKF | 705.765450 | 0.648228 | 1325.501267 | 1.276198 | | UPF | 705.161263 | 0.647876 | 1323.976107 | 1.274585 |
| | Student’s t distribution | EKF | 1059.874849 | 0.828895 | 2900.800178 | 3.184135 | | UKF | 670.321661 | 0.604835 | 1594.060692 | 1.436411 | | UPF | 669.959004 | 0.604513 | 1593.085809 | 1.436468 |
| Uniform
distribution | EKF | 1246.529130 | 1.207728 | 4029.187774 | 3.253167 | | UKF | 776.622486 | 0.767562 | 1985.870577 | 1.781823 | | UPF | 776.526144 | 0.767452 | 1985.704699 | 1.781594 |
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