Adaptive-Observer Design And Research For Nonlinear System

Recently, the non-linear observer design question is one of the research issue paid much attention by many scholars. That researches are made successful and most of them are aimed at Lipschitz non-linear-system state design. Studies have shown that in many cases the existing methods used to design Lipschitz nonlinear systems observer asymptotic stability can not be achieved.In this paper, different types of nonlinear systems are the-full-order, reduced-order and output whit a nonlinear item adaptive design. Major findings are as follow:In the situation of know the upper bound of adaptive observer parameters, use quasi-one-sided Lipschitz condition replace the usual condition, research for a class of Lipschitz nonlinear systems with full-order, reduced-order adaptive observe design.Improvement of existing systems, so that the output with a nonlinear term and to design the observer.Adaptive observer parameters in the upper bound of the unknown cases, adap-tive regulator design to estimate the unknown parameters of the norm. Quasi-one-sided Lipschitz condition to be replaced with the usual conditions of Lipschitz nonlinear systems with the-full-order, reduced-order is only observed adaptation design.