On the Computation of the Response of Perturbed Discrete Time Descriptor Systems

Abstract

Descriptor systems provide the natural framework for the study of a wide variety of physical, electrical, mechanical, economical and social systems. In this paper, the response of a Linear Time Invariant (LTI), descriptor system in discrete-time over a finite time interval is examined, whose coefficient matrix on the right hand side of the descriptor equation has been perturbed by a constant matrix. The response of the perturbed system is explicitly computed using a modified version of the well known Weierstrass canonical form and a simplified approximation formula is derived. A numerical example illustrates the findings.

On the Computation of the Response of Perturbed Discrete Time Descriptor Systems (PDF Download Available). Available from: http://www.researchgate.net/publication/275967348_On_the_Computation_of_the_Response_of_Perturbed_Discrete_Time_Descriptor_Systems [accessed Aug 12, 2015].