Fixed-Time Spacecraft Attitude Control With Unwinding-Free Performance

• 成果类型: Article
• 署名作者: Guan, Tao; Li, Bin; Song, Yongduan; Duan, Guang-Ren
• 署名单位: Sichuan University; Chongqing University; Harbin Institute of Technology
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2024.3471333
• 发表日期: 2025
• 页码: 1898-1904
• 关键词: Attitude control; Quaternions; Space vehicles; CONVERGENCE; trajectory; Symmetric matrices; kinematics; Angular velocity; Aerospace electronics; aerodynamics; fixed-time control; unwinding phenomenon

摘要

This note studies the problem of rapid attitude control with high accuracy for rigid spacecraft undergoing unwinding-free performance. By designing a novel nonsingular sliding function, fixed-time convergence and unwinding-free performance are rigorously established on the sliding surface. In addition, by introducing a novel potential function to design the controller, unwinding-free performance is also ensured outside of the sliding surface. Furthermore, the chattering problem is tackled by properly modifying the control strategy, with which the attitude tracking error is ensured to converge to an arbitrarily predefined residual set and the unwinding-free performance is also preserved. Numerical simulations also verify the effectiveness of the proposed method.