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A Loewner matrix approach to the identification of linear time-varying systems

A Loewner matrix approach to the identification of linear time-varying systems
A Loewner matrix approach to the identification of linear time-varying systems
We show that if enough “sufficiently informative” input-output trajectories generated by a linear, time-varying, finite-dimensional system and its dual are given, then state trajectories corresponding to them can be computed by factorizing a time- varying matrix directly constructed from the data. From such input-state-output trajectories an “unfalsified” linear time-varying model can be obtained solving a system of functional equations. Our approach is particularly relevant when the data- producing system is self-dual (e.g. if it is conservative).
Springer
Rapisarda, Paolo
79efc3b0-a7c6-4ca7-a7f8-de5770a4281b
Beattie, C.
Benner, P.
Embree, M.
Gugercin, S.
Lefteriu, S.
Rapisarda, Paolo
79efc3b0-a7c6-4ca7-a7f8-de5770a4281b
Beattie, C.
Benner, P.
Embree, M.
Gugercin, S.
Lefteriu, S.

Rapisarda, Paolo (2020) A Loewner matrix approach to the identification of linear time-varying systems. In, Beattie, C., Benner, P., Embree, M., Gugercin, S. and Lefteriu, S. (eds.) Realization and Model Reduction of Dynamical Systems: A Festschrift in Honor of the 70th Birthday of Thanos Antoulas. Springer.

Record type: Book Section

Abstract

We show that if enough “sufficiently informative” input-output trajectories generated by a linear, time-varying, finite-dimensional system and its dual are given, then state trajectories corresponding to them can be computed by factorizing a time- varying matrix directly constructed from the data. From such input-state-output trajectories an “unfalsified” linear time-varying model can be obtained solving a system of functional equations. Our approach is particularly relevant when the data- producing system is self-dual (e.g. if it is conservative).

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Accepted/In Press date: 2020
Published date: 2020

Identifiers

Local EPrints ID: 442862
URI: http://eprints.soton.ac.uk/id/eprint/442862
PURE UUID: 3d8f7d56-80dc-494e-a018-f5c4386f4220

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Date deposited: 30 Jul 2020 16:30
Last modified: 16 Mar 2024 08:45

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Contributors

Author: Paolo Rapisarda
Editor: C. Beattie
Editor: P. Benner
Editor: M. Embree
Editor: S. Gugercin
Editor: S. Lefteriu

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