I. Introduction
Due to the rapid development of sensing, communication, and computation technologies, multiagent system has seen increasing use in various fields, such as environmental sensing, cooperative transportation, target tracking, and so on [1]. Among the various cooperative control tasks of the multiagent systems, consensus tracking plays a fundamental role as many other tasks, such as formation, containment, and encirclement, can be solved based on the consensus tracking controllers [2]. Many important results have been obtained for consensus tracking of multiagent systems handling different agent dynamics, communication graphs, and convergence speed requirement [3], [4].