Generic uniform observability analysis for bilinear systems

  • Authors:
  • T. Boukhobza

  • Affiliations:
  • Centre de Recherche en Automatique de Nancy (CRAN - CNRS UMR 7039), Nancy University, BP 239, 54506 Vanduvre Cedex, Nancy, France

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2008

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Abstract

In this paper, we study the property of generic uniform observability for structured bilinear systems. More precisely, to check whether or not a structured bilinear system is generically uniformly observable, we provide a group of necessary conditions and a second group of sufficient ones. These conditions are expressed in quite simple graphic-terms. On one hand, all the given conditions are easy to check because they deal with finding paths in a digraph. On the other hand, the proposed method is based on a graph-theoretic approach and assumes only a knowledge of the system's structure. This makes the suggested approach particularly well suited to study large scale systems or systems with unknown parameters, as may be the case during a conception stage.