Distributed event-triggered H filtering over sensor networks with sensor saturations and cyber-attacks

This paper investigates the problem of distributed event-triggered H∞ filtering over sensor networks with sensor saturations and cyber-attacks. By taking the effects of sensor saturations existing in spatially distributed sensors and randomly occurring cyber-attacks into consideration, a distributed event-triggered filtering error system is firstly established. Then, sufficient conditions guaranteeing the system asymptotically stable with H∞ performance are obtained by means of Lyapunov stability theory. Moreover, the explicit expressions of distributed H∞ filters and the weighting matrices of distributed event-triggered scheme are achieved by solving a set of linear matrix inequalities (LMIs). Finally, two examples are given to illustrate the usefulness of the designed distributed event-triggered H∞ filters.