Fixed‐time attitude tracking control for rigid spacecraft | Zendy

Wang Zeng | Zendy; Su Yuxin | Zendy; Zhang Liyin | Zendy

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Fixed‐time attitude tracking control for rigid spacecraft

Author(s) -

Wang Zeng,

Su Yuxin,

Zhang Liyin

Publication year - 2020

Publication title -

iet control theory and applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.059

H-Index - 108

eISSN - 1751-8652

pISSN - 1751-8644

DOI - 10.1049/iet-cta.2019.0623

Subject(s) - control theory (sociology) , spacecraft , tracking (education) , attitude control , control engineering , control (management) , computer science , engineering , aerospace engineering , artificial intelligence , psychology , pedagogy

This study addresses the fixed‐time attitude tracking for rigid spacecraft with inertia uncertainties and external disturbances. Firstly, a new fixed‐time sliding surface based on the bi‐limit homogeneous theory is proposed. Secondly, a non‐singular sliding mode control is designed to solve the robust fixed‐time attitude tracking problem. It is proved that the proposed control can ensure that the sliding surface and attitude tracking errors converge to zero within fixed time. The appealing features of the proposed control are exact fixed‐time tracking stability with fast convergence, high precision, strong robustness and easy implementation. Simulations verify the effectiveness and improved performance of the proposed approach.

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