Event-triggered L1 filtering for uncertain networked control systems with multiple sensor fault modes

Abstract

Considering the influence of sensor fault modes on the system performance in communication network, under the discrete event-triggered communication scheme (DETCS), the problems of the robust [Formula: see text] filtering for a class of uncertain networked control systems (NCSs) with multiple sensor fault modes and persistent and amplitude-bounded disturbance constraints are investigated. A set of stochastic variables are adopted to describe the sensor faults, the filtering error system is established, which characterizes the effects of sensor faults and DETCS. By constructing an appropriate delay-dependent Lyapunov-Krasovskii functional, new results on stability and robust [Formula: see text] performance are proposed for the filtering error system according to Lyapunov theory and the integral inequality method, and the co-design method for gaining the desired [Formula: see text] filter parameters and event-triggering parameters is given in terms of linear matrix inequalities (LMIs). We notice that with the structrue of Lyapunov-Krasovskii functional which considers the piecewise-linear sawtooth structure characteristic of transmission delay, a less conservative result is obtained. Finally, three examples are provided to illustrate the feasibility of the proposed method.

Dynamic event-triggered control for linear systems subject to asymmetric actuator saturation

“…By transmitting feedback signals into aperiodic way, event-triggered control could definitely reduce the transmission number in contrast to traditional periodic transmission. Communication is invoked only when the certain event-triggered condition is satisfied (see Qi and Li, 2021). The advantage of event-triggered control has drawn a lot of attention in control fields.…”