Event-Triggered Finite-Time Attitude Control for Multiple Rigid Spacecraft With User-Defined Attitude Constraints

Achieving fast and precise attitude synchronization for multiple rigid spacecraft under user-defined constraints, while managing limited communication bandwidth, remains a key challenge. To address these issues, a kind of distributed constrained attitude control scheme is proposed in this article. The approach guarantees attitude synchronization with a leader spacecraft and ensures adherence to predefined attitude constraints. In addition, an event-triggered communication mechanism is incorporated to reduce communication frequency without sacrificing control performance. The global finite-time stability of the closed-loop system is rigorously proven. Simulation results demonstrate the effectiveness of the proposed method over existing control schemes.