Study on sensor and actuator fault diagnosis for UAV control system

The sensor and actuator failure models of UAV control system are built. These models include partial and total failures of sensor and actuator. Based on the models, multiple model adaptive filter is used to detect and to isolate the faults of the sensor and actuator of UAV control system. A simulation example, which includes three sensor faults and two actuator faults of an UAV control system, is given for illustration. It is found that the method can be used to detect such failures accurately and quickly through the simulation.