Distributed Attitude Synchronization for Spacecraft Formation Flying via Event-Triggered Control

The distributed attitude synchronization control problem for spacecraft formation flying subject to limited energy and computational resources is addressed based on event-triggered mechanism. Firstly, a event-driven controller designed achieve coordination with the limitation of computing resources. Under proposed strategy, only updated at event triggering instants, which effectively reduces update frequency. Subsequently, an strategy developed further decrease consumption amount computation. function requires latest state information about its neighbors, implying that trigger threshold does not need be calculated continuously. It shown interval between two successive events strictly positive, showing system has no Zeno phenomenon. Moreover, frequency can reduced by more than 90% compared corresponding time-driven 10 Hz choosing appropriate parameters still high-precision convergence. Finally, effectiveness constructed scheme verified numerical simulations.