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Spectral filters connecting high order systems

Author

Listed:
  • Amparan, A.
  • Marcaida, S.
  • Zaballa, I.

Abstract

Three criteria are given to characterize when two linear dynamical systems have the same spectral structure (same finite and infinite elementary divisors). They are allowed to have different orders or sizes and their leading coefficient may be singular. One of the criteria uses generalized reversal matrix polynomials, while the others rely on the existence of spectral filters. These are matrix polynomials which play a similar role to the change of bases for first order systems. A constructive procedure is presented to obtain spectral filters linking any two systems with the same spectral structure. Connections are made with the second-order systems decoupling problem.

Suggested Citation

  • Amparan, A. & Marcaida, S. & Zaballa, I., 2021. "Spectral filters connecting high order systems," Applied Mathematics and Computation, Elsevier, vol. 391(C).
    • Handle: RePEc:eee:apmaco:v:391:y:2021:i:c:s0096300320306251
    DOI: 10.1016/j.amc.2020.125672
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