Image-based navigation and guidance for landing on small body

Shuang Li; Zexu Zhang

doi:10.1117/12.658342

4 January 2006 Image-based navigation and guidance for landing on small body

Shuang Li, Zexu Zhang

Proceedings Volume 5985, International Conference on Space Information Technology; 59854D (2006) https://doi.org/10.1117/12.658342
Event: International Conference on Space information Technology, 2005, Wuhan, China

Abstract

Due to long round-trip communication delay and low telemetry bit-rates, the traditional Guidance Navigation and Control (GNC) mode based on Deep Space Network (DSN) is no more suitable for landing spacecraft on small celestial bodies. This paper presents an image-based navigation and guidance scheme for future asteroid landing mission. Firstly, an autonomous navigation scheme based on feature detection and tracking technology is presented. Secondly, proportional plus derivative (PD) guidance control laws and Pulse-Width and Pulse-Frequency (PWPF) modulator are designed to track the desired descent trajectory and achieve landing on asteroids safely. Finally, the validity of the proposed scheme is confirmed by computer simulation.

Citation Download Citation

Shuang Li and Zexu Zhang "Image-based navigation and guidance for landing on small body", Proc. SPIE 5985, International Conference on Space Information Technology, 59854D (4 January 2006); https://doi.org/10.1117/12.658342

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