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- Title
Anti‐unwinding adaptive spacecraft attitude tracking control based on similar skew‐symmetric structures.
- Authors
Su, Yunzhe; Yang, Yajun; Yang, Xuerong; Zhang, Xueyang
- Abstract
This article addresses the adaptive attitude tracking control based on similar skew‐symmetric structure. Based on the structure, a novel adaptive backstepping scheme is proposed to design the attitude controller. To avoid unwinding, a rotation matrix rather than a quaternion is used to describe the attitude. Correspondingly, the application of similar skew‐symmetric structure is extended from euclidean space to noneuclidean space, for which the stability is proved by combining the Lyapunov function and the Morse–Lyapunov function. In addition, the smooth projection function is adopted to design the adaptive law for the unknown parameters. And the input‐to‐state stable property of the closed‐loop system is proved when considering the unmodeled disturbance. Finally, numerical simulations are carried out to illustrate the effectiveness of the proposed controllers.
- Subjects
ARTIFICIAL satellite attitude control systems; TRACKING control systems; SPACE vehicles; CLOSED loop systems; SMOOTHNESS of functions; LYAPUNOV functions; QUATERNIONS
- Publication
International Journal of Robust & Nonlinear Control, 2022, Vol 32, Issue 7, p4438
- ISSN
1049-8923
- Publication type
Article
- DOI
10.1002/rnc.6028