Memory-Event-Triggered H ∞ Filtering of Unmanned Surface Vehicles With Communication Delays

This brief studies the design of a memory-event-triggered $H_{\infty }$ filter for unmanned surface vehicles (USVs) with communication delays. To save precious communication resources, a memory-event-triggered scheme (METS) is constructed by utilizing the mean of historical outputs. A novel united framework of the filtering error system under the METS and communication delays is established as a distributed delay system. By using the Bessel-Legendre (BL) inequality to handle the distributed delay, sufficient conditions are derived for designing $H_{\infty }$ filters for USVs under METS. Finally, an illustrative example is simulated to show the advantage of the presented strategy.