Paper Title
DESIGN AND SIMULATION AN OBSERVER-BASED CONTROLLER FOR NONLINEAR SYSTEM BASED FEEDBACK LINEARIZATION

Abstract
In nonlinear systems, using a conventional controller cannot improve the system behaviors with an acceptable accuracy. Therefore, to meet a specified specifications modification in system structure and in controllers must be done. In this paper an adaptive approach (e.g. Linear Quadratic Optimal State Estimator Integral Control [LQOSEIC]) is used in such a way to make a linearized system model that operate as a model reference for the nonlinear system and provides the best performance for the nonlinear system.