SMO-Based Distributed Tracking Control for Linear MASs With Event-Triggering Communication

This article is devoted to the robust tracking control issue for leader-following linear multiagent systems (MASs) in the case of unavailable states, external interferences, and limited network bandwidth. First, a distributed sliding-mode observer (SMO), including neighbor output information, which can effectively cope with external interferences in the closed-loop system and estimate the unmeasurable states of linear MASs, is established. Second, in order to prevent continuous communication and resize the activated interval, a distributed dynamic triggering transmission mechanism based on the SMO state is constructed. Then, the bounded consensus tracking performance of disturbed linear MASs with unavailable states is well realized by devising a distributed robust control protocol in terms of the SMO state and event-triggered communication mechanism. By employing the Lyapunov stability theory and Riccati equation, some ample conditions are deduced to guarantee the leader-following bound consensus for linear MASs subject to perturbations and unmeasured states. Finally, to further validate the validity of the SMO-based event-triggered communication control strategy, an emulation example is provided.