Finite-Time Attitude Control of Multiple Rigid Spacecraft}%uthorCHN{张三丰ffil{1},李四ffil{2}
首发时间:2012-12-28
Abstract:This paper investigates the control problem of the finite-timeattitude synchronization and tracking for a group of rigidspacecraft in the presence of environmental disturbances. A new fastterminal sliding manifold is developed for the multiple spacecraftformation flying under the undirected graph topology. Based on thefinite-time control and adaptive control strategies, a noveldecentralized finite-time control law is proposed to force thespacecraft attitude error dynamics to converge to the small regionsin finite time, and an adaptive law is applied to estimate thedisturbance. The finite-time convergence and stability of the closedloop system can be guaranteed by Lyapunov theory. Simulationexamples are provided to illustrate the feasibility of the controlalgorithm.
keywords: Attitude synchronization Fast terminal sliding manifold (FTSM) Finite-time control Adaptive control
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