Control of multivariable systems with interval parameters

This paper considers a class of m-input m-output interval systems. The systems are described by impulse response functions. The parameters in the system model are unknown, but bounded by given intervals. An algorithm that determines the control actions based on the intervals of the model parameters is proposed. It is proved that the robust steady-state performance in tracking a given set-point is guaranteed despite possible open-loop overshooting, delay, and nonminimum phase of the interval plants. A simulation example is also given in the paper.