1. 嫦娥五号双目标联合定轨技术研究.
- Author
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张 宇, 段建锋, 孔 静, 曹建峰, 韩 意, 李翠兰, 宋 辰, and 陈 明
- Subjects
- *
OPTICAL radar , *VERY long baseline interferometry , *RELATIVE motion , *ORBITS (Astronomy) , *RADAR , *ORBIT determination - Abstract
Objectives: The accuracy of relative track between orbiter and ascender can ensure success and safety during the meeting and docking process of Lunar. Methods: Based on dual-target joint measurement of Chang’E-5, we established the same beam interferomery(SBI) measurement and inter-satellite measure⁃ ment model, and designed a statistical orbit determination algorithm combined with orbiter and ascender. Results: We used the reference orbit to analyze delay and delay rate of SBI, and the range and range accuracy of microwave radar/laser radar. The accuracy of SBI is equivalent to that of very long baseline interferometry, and the range accuracy of microwave radar/laser radar is at meter level. Conclusions: By establishing the relative motion relationship between the two targets, the relative orbit accuracy can be sig⁃ nificantly improved in orbit determination. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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