Fault Detection for Uncertain Delta Operator Systems with Two-channel Packet Dropouts via a Switched Systems Approach

This paper utilizes a switched systems approach to deal with the problem of fault detection for uncertain delta operator networked control systems (NCSs) with packet dropouts and time-varying delays. A fault detection filter is designed under an arbitrary switching law. The sufficient conditions that are obtained in terms of linear matrix inequalities (LMI), multiple Lyapunov functions (MLF) and average dwell-time (ADT) approach, ensure the NCSs under consideration are exponentially stable and satisfy H-infinity performance. The explicit expression of the desired filter parameters is given. The effectiveness of the proposed method is verified by a numerical example.