Abstract
This paper proposes a navigation scheme to prove the potential of a novel autonomous orbit determination using stellar horizon atmospheric refraction measurements (SHAR). This new scheme consists of two parallel processors named P I and P II, which use different algorithms. P II uses batched Least-Square initial state estimator and high-precision orbit propagator. P I uses real-time orbit determination algorithm. Simulations of the novel navigation scheme have been done on PC for three representative satellite orbits (i.e. LEO, GPS and GEO) where different numbers of stars are observed respectively. The results show the scheme can achieve desirable navigation accuracy. Also parallel navigation computers can be used on autonomous navigation satellites.
| Original language | English |
|---|---|
| Pages (from-to) | 1422-1425 |
| Number of pages | 4 |
| Journal | Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology |
| Volume | 38 |
| Issue number | 9 |
| State | Published - Sep 2006 |
| Externally published | Yes |
Keywords
- Artificial satellite
- Autonomous orbit determination
- Batched Least-Square estimator
- Parallel processors
- SHAR
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