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Proceedings Paper

Robust guidance and control of lunar lander using model reference approach
Author(s): Xing-Long Liu; Guang-Ren Duan
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Paper Abstract

This paper deals with the soft landing of a lunar lander by the model reference. At first, according to the experimental result and human experience, we give an optimal trajectory for the lunar lander, from the perilune to the lunar surface, such that the lander has the least fuel consumption and the best security. Then, linearizing the optimal trajectory and the dynamical description of the lunar lander at some characteristic spots, we obtain two switched linear systems. Using the model reference approach, we design a switched state-feedback controller for the lunar lander such that tracking the optimal trajectory. But, for the derivation from the linearization, there exists a steady-state error between the optimal trajectory and the lunar lander. However, we choose suitable gain matrices to decrease the error as may as possible.

Paper Details

Date Published: 4 January 2006
PDF: 5 pages
Proc. SPIE 5985, International Conference on Space Information Technology, 59854J (4 January 2006); doi: 10.1117/12.658352
Show Author Affiliations
Xing-Long Liu, Harbin Institute of Technology (China)
Guang-Ren Duan, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 5985:
International Conference on Space Information Technology
Cheng Wang; Shan Zhong; Xiulin Hu, Editor(s)

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