Spacecraft Attitude Formation: An Event-Triggered Impulsive Control Approach

Addressing the problem of spacecraft attitude formation control, this paper proposes an innovative approach: unlike traditional methods, short-duration jet-driven signals are approximated as impulsive control signals to characterize the 'instantaneous' changes in the spacecraft's angular velocity. Furthermore, instead of pursuing equivalence with continuous control signals, the evaluation of impulsive control effectiveness is directly based on closed-loop control performance, aiming to design an impulsive controller that ensures the closed-loop system performance approximates that of a given nominal continuous reference system. This method provides a new theoretical framework for significantly reducing spacecraft fuel consumption and actuator wear while maintaining control accuracy. Finally, numerical examples are presented to demonstrate the effectiveness of the proposed control algorithm.