Guidance law for lunar pinpoint soft landing based on Lyapunov stability theory

被引：0
|
作者：
Liang D. [1 ,2 ]
Liu L. [1 ]
He Y. [1 ,2 ]
机构：
[1] Beijing Institute of Control Engineering
[2] National Key Laboratory of Science and Technology on Space Intelligent Control
来源：
Zhongguo Kongjian Kexue Jishu/Chinese Space Science and Technology | 2011年 / 31卷 / 02期
关键词：
Guidance; Lunar exploration; Lyapunov stability; Pinpoint soft landing; Sliding mode;
D O I：
10.3780/j.issn.1000-758X.2011.02.004
中图分类号：
学科分类号：
摘要：
To achieve the pinpoint soft landing on a target landing site of the lunar surface, a globally exponentially stable guidance method for lunar pinpoint soft landing was studied by the 3-D spherical nonlinear orbit dynamics model. Based on Lyapunov direct method, a pinpoint guidance law tracking convergent sliding mode was designed. It was theoretically proved that the guidance law was globally exponentially stable by using Lyapunov stability theory. The numerical simulation results show that this guidance method can meet the need of lunar pinpoint soft landing.
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页码：25 / 31
页数：6
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