Abstract
A matrix method is introduced for determination of robust-stability zones of the general linear time invariant discrete-time dynamics with large delays against parametric uncertainties. The technique employs Kronecker Product and unique properties of palindrome polynomials. These polynomials are subset of self-inversive polynomials which exert advantageous tools for examination of the distribution of its zeros. The main motivation in this paper is to develop a practical tool for determination of robust stability zones against parametric uncertainties and dominant pole assignment in discrete-time domain. A sufficient condition for robust stability and dominant pole assignment is presented. The procedure for the solution is demonstrated via some example case studies.
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