Model matching control for nonlinear discrete time systems

A new method of model matching control for nonlinear discrete time systems is presented in this paper. The method is very simple and useful not only for linear but also for nonlinear systems. If there is no uncertainty like a model error, this method gives a closed loop system whose characteristic is exactly the same with the desired model. To cope with the real applications where the system model includes uncertainty, integral action is easily introduced with some other free para-meters. This result is also extended for systems with time lag and multivariable systems.