Distributed adaptive consensus tracking of unknown heterogenous linear systems via output feedback

This paper proposes a distributed adaptive output feedback control scheme for global asymptotic output consensus tracking of heterogenous linear systems involving unknown parameters. The communication status among the subsystems is represented by a directed graph, and the desired trajectory information is available only to a subset of the subsystems. It is proved that by using the proposed control scheme, all signals of the overall closed-loop system are globally uniformly bounded and the global asymptotic consensus tracking for the outputs of all subsystems is guaranteed. Simulation results are presented to illustrate the etlectiveness of the proposed scheme.