Crew exploration vehicle (CEV) attitude control using a neural–immunology/memory network

Liguo Weng, Min Xia, Wei Wang and Qingshan Liu

International Journal of Systems Science, 2015, vol. 46, issue 1, 152-158

Abstract: This paper addresses the problem of the crew exploration vehicle (CEV) attitude control. CEVs are NASA's next-generation human spaceflight vehicles, and they use reaction control system (RCS) jet engines for attitude adjustment, which calls for control algorithms for firing the small propulsion engines mounted on vehicles. In this work, the resultant CEV dynamics combines both actuation and attitude dynamics. Therefore, it is highly nonlinear and even coupled with significant uncertainties. To cope with this situation, a neural–immunology/memory network is proposed. It is inspired by the human memory and immune systems. The control network does not rely on precise system dynamics information. Furthermore, the overall control scheme has a simple structure and demands much less computation as compared with most existing methods, making it attractive for real-time implementation. The effectiveness of this approach is also verified via simulation.

Date: 2015
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DOI: 10.1080/00207721.2013.775389

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