Closed-loop Fault Detection for Networked Flight Vehicle with Asynchronous Switching

This paper investigates the closed-loop fault detection problem for networked flight control system with asynchronous switching. Firstly, the original flight dynamics is modelled as a linear switched system including multiple operating points. Secondly, observer-based fault detection filters and robust tracking controllers are designed synergistically to detect faults and make the system track a given command signal. Then, an asynchronous H-infinity analytical method was proposed to overcome the asynchronous phenomenon between the filters/controllers and flight dynamics which is caused by the updating intervals of the system states. Moreover, the globally uniformly asymptotically stability in the mean (GUAS-M) are guaranteed by combing the Lyapunov function method with average dwell time (ADT) method.