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- Title
Fixed-time re-entry attitude control based on nonsingular terminal sliding mode.
- Authors
You, Ming; Zong, Qun; Tian, Bailing; Zeng, Fanlin; Zhang, Yunpeng
- Abstract
The fixed-time attitude tracking control scheme for reusable launch vehicles with uncertainties and external disturbances is investigated. A fixed-time convergent nonsingular terminal sliding mode controller is presented to guarantee that the attitude command can be tracked in a fixed-time. Lyapunov technique is used for deriving the proof of the fixed-time convergence of the closed system. The proposed control scheme is suitable for multivariable second-order systems and the settling time is predefined and bounded by a constant independent of initial conditions. Finally, numerical simulations are carried out to demonstrate the efficiency of the proposed method.
- Subjects
TRACKING control systems; SLIDING mode control; STOCHASTIC convergence; LYAPUNOV functions; TIME-varying systems
- Publication
IMA Journal of Mathematical Control & Information, 2018, Vol 35, Issue 4, p1043
- ISSN
0265-0754
- Publication type
Article
- DOI
10.1093/imamci/dnx010