Identifiability of discrete-time linear switched systems

  • Authors:
  • Mihaly Petreczky;Laurent Bako;Jan H. van Schuppen

  • Affiliations:
  • Maastricht University, Maastricht, Netherlands;Univ Lille Nord de France, EMDouai, Douai, France;Centrum Wiskunde & Informatica, Amsterdam, Netherlands

  • Venue:
  • Proceedings of the 13th ACM international conference on Hybrid systems: computation and control
  • Year:
  • 2010

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Abstract

In this paper we study the identifiability of linear switched systems (LSSs) in discrete-time.The question of identifiability is central to system identification, as it sets the boundaries of applicability of any system identification method; no system identification algorithm can properly estimate the parameters of a system which is not identifiable. We present necessary and sufficient conditions that guarantee structural identifiability for parametrized LSSs. We also introduce the class of semi-algebraic parametrizations, for which these conditions can be checked effectively.