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Abstract

The problem of finding the mapping between unimoduar transformations relating two minimal matrix fraction descriptions (MFDs) of a transfer function, and the similarity transformations relating the respective minimal state-space representations is considered. It is shown that the problem is equivalent to finding the relation of MFDs of the input-state transfer functions of the two systems. This relation turns out to be an equivalence relation involving the unimodular and the similarity matrices relating the MFDs and the state-space systems, respectively. A canonical form for MFDs under this equivalence relation is obtained and it is shown that it leads to a canonical state-space representation, via a realisation procedure.

Publication Type:	Article
Additional Information:	This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Control on 15 January 2018, available online: http://www.tandfonline.com/10.1080/00207179.2018.1427892.
Publisher Keywords:	Linear systems, unimodular transformations, similarity, matrix fraction description
Departments:	School of Science & Technology > Engineering

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