In this article, a novel distributed attitude coordination control scheme is proposed for a group of rigid spacecraft with unknown disturbances. The communication topology is described by a general directed graph, and the leader's attitude is available to only a small fraction of followers. Different from existing attitude coordination control schemes, here an event-triggered communication strategy without Zeno phenomenon is designed, which avoids continuous communication between neighboring spacecraft and considerably reduces the communication burden. Moreover, a nonlinear observer is constructed for each follower, which enables us to estimate and compensate for a large class of disturbances exactly. The proposed scheme is able to ensure the boundedness of all closed-loop signals and steer the attitude tracking errors into an arbitrarily small residual set, regardless of the intermittent communication. Simulation results illustrate the effectiveness of the proposed scheme.
Attitude Coordination Control for Spacecraft With Disturbances and Event-Triggered Communication
IEEE Transactions on Aerospace and Electronic Systems ; 57 , 1 ; 586-596
2021-02-01
2546580 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Event- and self-triggered control of attitude coordination to multi-spacecraft system
Emerald Group Publishing | 2020
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