Robust State Observer for Lipschitz Nonlinear Systems with Time Delay

시간 지연을 갖는 Lipschitz 비선형 시스템의 강인 상태 관측기

This paper presents a robust state observer design for a class of Lipschitz nonlinear systems with time delay and external disturbance. A sufficient conditions on the existence of the proposed observer are characterized by linear matrix inequalities. It is also shown that the proposed observer design can reduce the effect on the estimation error of external disturbance up to the prescribed level in spite of the existence of time delay. Finally, a numerical example is provided to verify the proposed design method.