A nussbaum gain approach to attitude tracking control of spacecrafts with actuator faults

This paper concentrates on attitude tracking control design for spacecrafts with actuator faults. By introducing a Nussbaum gain technique law to handle unknown healthy indicators, we propose a Lyapunov function-based feedback control design. It is proved that with the developed controller, the solution of the closed-loop systems is bounded, while the tracking issue can be realized. The efficiency of the developed control design is further shown by a numerical simulation.