Exponential H_∞ filtering of networked linear switched systems with mode-dependent average dwell time: an event-triggered scheme

摘要

In this paper, the event-triggered exponential filtering problem is addressed for a class of networked linear switched systems via mode-dependent average dwell time (MDADT) technique. An event-triggered communication mechanism is designed to enhance the resource utilisation in transmission and save the communication cost of systems as well. Then, the filtering error system is reconstructed as a switched time-delay system with bounded disturbance by virtue of the input delay system approach. By applying the mode-dependent Lyapunov functional approach, some interesting results with MDADT technique are derived to ensure the exponential stability and a prescribed disturbance rejection level. Further, some sufficient conditions for switched systems with average dwell time (ADT) are also presented as byproduct. An event-triggered exponential filter is presented by solving some convex optimisation problems. The efficiency of the presented results is verified through a numerical example and a PWM-driven boost converter systems.