A Class Of Uncertain Time Delay System H_ ¡Þ

In this paper,we discuss several kinds of time-delayed systems.First,this paper discusses H_∞ control problem of time-delayed and uncertain system by using the method of LMI.The stable problem of the system is considered firstly,then we establish a mem-moryless state feedback contro law in order to stablize the system on the grounds that the system has certain robust property and H_∞ property.The H_∞ control problem of a class of neutral delay system with all uncertainty is addressed, we convert it into a class of neutral delay system with certainty.In chapter l,we investigate H_∞ control of a class of linear time- delayed system with uncertainty.In chapter 2,we consider H_∞ control of a class of neutral time-delayed system with all uncertainty.