Reduction of interval systems using Kharitonov's polynomials and their derivatives

This paper presents a model order reduction technique based on Kharitonov polynomials. The reduced order interval models are determined by using Kharitonov polynomials and differentiation method. This method is computationally simple and always gives stable results. The performance of this method measured in terms of integral squire error (ISE). Numerical examples are given, that shows that the proposed algorithm is quite comparable with other existing methods.