Event-triggered nonlinear attitude control for a rigid spacecraft

Future spacecraft systems will require careful co-design over both physical and cyber elements to provide a better performance for holistic system. Furthermore, the event triggered control is a resource-aware strategy which allows a reduction of the computation and communication demand without sacrificing performance. In this paper, we discuss that a nonlinear event triggered control approach is applied for the spacecraft attitude control problem. Actuation is only performed when needed and a quaternion based nonlinear feedback strategy is proposed in this approach for ensuring system exponential stability to the desired attitude. Finally, a numerical example is provided to illustrate the efficiency and feasibility of the obtained results.