Title :
Attitude tracking of rigid spacecraft based on extended state observer
Author :
Zhu, Zheng ; Xia, Yuanqing ; Fu, Mengyin ; Wang, Shuo
Author_Institution :
Dept. of Autom. Control, Beijing Inst. of Technol., Beijing, China
Abstract :
The problem of attitude control for a spacecraft model which is nonlinear in dynamics with inertia uncertainty and external disturbance is investigated in this paper. The extended state observer is applied to estimate the disturbance, by which a sliding mode controller is designed to force the state variables of the closed loop system to converge to the reference attitude states. Also, simulation results are presented to illustrate the effectiveness of the control strategy.
Keywords :
attitude control; closed loop systems; estimation theory; nonlinear dynamical systems; observers; space vehicles; uncertain systems; variable structure systems; attitude control; attitude tracking; closed loop system; control strategy; disturbance estimation; extended state observer; external disturbance; inertia uncertainty; nonlinear dynamics; reference attitude states; rigid spacecraft; sliding mode controller; spacecraft model; state variables; Adaptation model; Measurement units; Observers; Attitude tracking; Extended state observer; Sliding mode control;
Conference_Titel :
Systems and Control in Aeronautics and Astronautics (ISSCAA), 2010 3rd International Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-6043-4
Electronic_ISBN :
978-1-4244-7505-6
DOI :
10.1109/ISSCAA.2010.5633190
