Two-dimensional behavior decompositions with Finite-Dimensional Intersection: A Complete Characterization

  • Authors:
  • Mauro Bisiacco;Maria Elena Valcher

  • Affiliations:
  • Dip. di Ingegneria dell'Informazione, Univ. di Padova, Padova, Italy 35131;Dip. di Ingegneria dell'Informazione, Univ. di Padova, Padova, Italy 35131

  • Venue:
  • Multidimensional Systems and Signal Processing
  • Year:
  • 2005

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Abstract

In this paper, the following problem is addressed: given a two-dimensional complete behavior$${\cal B}$$ and one of its sub-behaviors$${\cal B}_B$$, under what conditions a third complete behavior$${\cal B}_A$$ can be found, such that$${\cal B} = {\cal B}_A + {\cal B}_B$$ and$${\cal B}_A \cap {\cal B}_B$$ is finite-dimensional autonomous? This constitutes a complete generalization of the decomposition theorem, as it represents a decomposition with "minimal intersection", in which one of the two terms has been a priori fixed. The analysis carried on here completes the preliminary results reported in [Bisiacco and Valcher, Multidimensional Systems and Signal Processing, vol. 13,2002, pp. 289--315]. and completely generalizes the direct sum decomposition problem presented in [Bisiacco and Valcher, IEEE Transactions on Circuits and Systems Part I, CAS-I-48, no-4, 2001, pp. 490--494].