Abstract
In view of the large number of stars in the optical images obtained by the spacecraft in orbit and the limited computational resources onboard，a configuration optimization method for inter-star angle observation of relativistic navigation is proposed during the process of spacecraft utilizing relativistic effects for autonomous navigation. Based on the analysis of the relationship between the system observability and the quantity and the magnitude of the stellar inter-star angle，the optimization criteria of the inter-star angle observation configuration are designed. To improve the star selection efficiency，the stellar observations in separated regions are matched，and a constraint of the projection point of the stellar angular inter-star angle bisector is established. These techniques are used to optimize the navigation observation configuration and realize a rapid selection and effective utilization of the navigation information. The simulation results show that the proposed method can effectively improve the estimation convergence speed and navigation accuracy in spacecraft state estimation.
| Translated title of the contribution | Configuration Optimization for Inter-star Angle Observation in Spacecraft Relativistic Navigation |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 965-976 |
| Number of pages | 12 |
| Journal | Yuhang Xuebao/Journal of Astronautics |
| Volume | 46 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2025 |