无线传感网络分布式故障检测H∞滤波器设计OA

This work investigates the issue on distributed event-triggered fault detection H∞ filtering design under resource constraints,communication delays and external disturbances.First,to address the constraint of network resource,a distributed adaptive event-triggered scheme is proposed to determine whether current data should be transmitted,which effectively helps reduce data transmissions.Second,based on triggering errors,communication delays and sensor faults,the filtering error system is reformulated as a closed-loop system with multiple time-varying delays.Third,by utilizing mixed-delay-dependent techniques,an augmented Lyapunov functional is constructed and its derivative is estimated tightly.Thus,a sufficient condition is established not only to ensure the asymptotic stability and H∞ performance index of filtering error system,but also enable to detect the occurrence of sensor faults.Fourth,by resorting to matrix transformation,a co-design of the distributed H∞ filter and the event-triggered scheme are proposed in terms of linear matrix inequalities(LMI),which are easy to test and have a wide range of applications.Finally,simulating results and comparisons are presented to demonstrate the effectiveness and reduced conservatism of the proposed methods.