Interpolants With Second-Order Structure in the Loewner Framework

Joel D. Simard*, Xiaodong Cheng, Alessio Moreschini

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperAcademicpeer-review

2 Citations (Scopus)

Abstract

We consider the problem of assigning a particular structure to interpolants constructed in the Loewner framework. Specifically, a dynamically extended family of interpolants matching sets of right and left tangential data is used to parameterize a family of systems matching the tangential data while also possessing a specific second-order structure. At the cost of adding states to the interpolant, the approach does not require the addition of any strict conditions on the structure of the tangential data. Conditions are stated under which, if satisfied, the interpolant corresponds to a system with physical meaning, and an illustrative example is provided.

Original languageEnglish
Title of host publication22nd IFAC World Congress
Subtitle of host publicationYokohama, Japan, July 9-14, 2023
EditorsHideaki Ishii, Yoshio Ebihara, Jun-ichi Imura, Masaki Yamakita
PublisherElsevier
Pages4278-4283
Number of pages6
Edition2
ISBN (Electronic)9781713872344
DOIs
Publication statusPublished - 1 Jul 2023
Event22nd IFAC World Congress - Yokohama, Japan
Duration: 9 Jul 202314 Jul 2023

Publication series

NameIFAC-PapersOnLine
Number2
Volume56
ISSN (Electronic)2405-8963

Conference

Conference22nd IFAC World Congress
Country/TerritoryJapan
CityYokohama
Period9/07/2314/07/23

Keywords

  • Loewner framework
  • second-order systems
  • structure-preserving model reduction

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