Robust-control-relevant coprime factor identification: A numerically reliable frequency domain approach

T.A.E. Oomen, O.H. Bosgra

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

13 Citations (Scopus)
2 Downloads (Pure)


In approximate identification, the goal of the model should be taken into account when evaluating model quality. The purpose of this paper is the development of a system identification procedure, resulting in model sets that are suitable for subsequent robust control design. Incorporation of control relevance in the procedure results in a closed-loop frequency response-based multivariable system identification procedure. The model is represented as a coprime factorization, enabling the usage of stable model perturbations. The main result is the direct estimation of control-relevant coprime factors, exploiting knowledge of a stabilizing controller during the identification experiment. A numerically reliable iterative algorithm is devised, which is illustrated by means of experimental results.
Original languageEnglish
Title of host publicationProceedings of the 2008 American Control Conference (ACC2008), Seattle, Washington, USA, June 11-13, 2008
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Print)978-1-4244-2078-0
Publication statusPublished - 2008
Event2008 American Control Conference (ACC 2008) - Westin Seattle Hotel, Seattle, WA, United States
Duration: 11 Jun 200813 Jun 2008


Conference2008 American Control Conference (ACC 2008)
Abbreviated titleACC 2008
Country/TerritoryUnited States
CitySeattle, WA
Internet address


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