Finite time control design for re-entry hypersonic vehicle with disturbance observer
WANG Fang
ZONG Qun
TIAN Bai-ling
DONG Qi
Abstract：The finite time attitude tracking control problem is investigated based on disturbance observer for the reentry hypersonic vehicles with bounded external disturbances and model uncertainties. Firstly, the attitude model is divided into a two-loop structure based on the multiple time scale technique, and then terminal sliding mode controllers are designed for each loop. Secondly, disturbance observer is designed to estimate external disturbances and uncertainties, and the chattering caused by the big controller parameters of the sliding mode control can be eliminated. Stability is presented on the basis of Lyapunov analysis. Finally, simulation is carried out to demonstrate the effectiveness of the proposed controller for the 6-DOF reentry model.
Keywords：reentry modelfinite time controlterminal sliding mode controldisturbance observer
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 1527-1534 )