Adaptive failure identification for near space vehicles under closed-loop control

This paper develops an adaptive actuator failure identification scheme for near space vehicles (NSVs) in a stabilized feedback framework. For the implementation of failure identification, an adaptive failure compensation scheme is developed, and a special reference motion is provided by employing a linearly independent condition. When some actuators have failed, both identification and control are applied, and the control, while guaranteeing the system stability, makes NSVs engage in the designed reference motion so that the failed actuators can be found out by the failure identification algorithm. Simulation results verify the effectiveness of the proposed adaptive failure identification strategy.