Abstract
The autonomous determination of relative states is a key technique of formation flying. Based on AFF technology, a relative states autonomous determination algorithm based on intersatellite measurement by GPS-like sensors is put forward. Relative orbit and attitude motion equation of double formation satellites are taken as states equation. In order to eliminate the influence of system error and time error, the measurement equation is formed by single difference between different receiving antennas of the same satellite. To guarantee positive definite quality of covariance and to improve calculation precision and speed, a square root UKF filter is used to realize relative states autonomous determination of double satellites formation flying. Simulation results show the feasibility and effectiveness of the proposed algorithm.
| Original language | English |
|---|---|
| Pages (from-to) | 139-142 |
| Number of pages | 4 |
| Journal | Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics |
| Volume | 29 |
| Issue number | 1 |
| State | Published - Jan 2007 |
Keywords
- GPS
- Kalman filter
- Relative states
- Satellites formation
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