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Adaptive backstepping control for optimal descent with embedded autonomy

Li, Maodeng and Jing, Wuxing and Macdonald, Malcolm and McInnes, Colin (2011) Adaptive backstepping control for optimal descent with embedded autonomy. Aerospace Science and Technology, 15 (7). pp. 1396-1411. ISSN 1270-9638

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Abstract

Using Lyapunov stability theory, an adaptive backstepping controller is presented in this paper for optimal descent tracking. Unlike the traditional approach, the proposed control law can cope with input saturation and failure which enables the embedded autonomy of lander system. In addition, this control law can also restrain the unknown bounded terms (i.e., disturbance). To show the controller’s performance in the presence of input saturation, input failure and bounded external disturbance, simulation was carried out under a lunar landing scenario.