Control design based on state observer for nonlinear delay systems via an LMI approach, International journal of information and systems sciences. This issue

Abstract. This paper is concerned with the problem of feedback control based on observer for a class of nonlinear systems with delay. Our purpose is to design a state observer and dynamic output feedback controller so that the closed-loop system is asymptotically stable. Our main tool will be linear matrix inequality (LMI). At end, we will present a numerical example to illustrate the results; our simulation shows that the method discussed herein the paper is rather effective