Title :
Adaptive control for attitude synchronisation of spacecraft formation via extended state observer
Author :
Hongjiu Yang ; Xiu You ; Yuanqing Xia ; Hongbo Li
Author_Institution :
Coll. of Electr. Eng., Yanshan Univ., Qinhuangdao, China
Abstract :
This study studies the problem of synchronisation control for spacecraft formation via extended state observer approach over directed communication topology. The attitude kinematics and dynamics of spacecraft are described by Lagrangian formulations, and the decentralised controller is designed with time-varying external disturbances and unmeasurable velocity information. In particular, the estimation of disturbances obtained via extended state observer is used for the decentralised controller design. A novel Lyapunov function is proposed to show that both static regulation and dynamic synchronisation are realised. Finally, simulation results are given to demonstrate the effectiveness of the controllers proposed in this study.
Keywords :
adaptive control; attitude control; control system synthesis; decentralised control; observers; space vehicles; Lagrangian formulations; Lyapunov function; adaptive control; attitude kinematics; attitude synchronisation; decentralised controller design; directed communication topology; dynamic synchronisation; extended state observer; spacecraft formation; static regulation; synchronisation control; time-varying external disturbances; unmeasurable velocity information;
Journal_Title :
Control Theory & Applications, IET
DOI :
10.1049/iet-cta.2013.0988