In this thesis, an analysis and design method of nonlinear systems with time varying parameters is proposed. The method is based on extended linearization(parameterization of operating points with respect to time varying parameters) and gain scheduling. By the analysis method, one can compute an upper bound of the Euclidean norm of the difference between the real solution and the parameterized operating points of the given system. Using the design method, one can obtain a controller which satisfies the prespecified asymptotic output tracking error condition. Especially, proposed design method provides a controller that guarantees zero asymptotic output tracking error for the system with constant parameters. Some examples are given to validate the method.
