Output intersampling approach to direct closed-loop identification

Lianming Sun, Hiromitsu Ohmori, Akira Sano

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)


A direct closed-loop identification scheme that used the output intersampling technique was proposed. In this method, the plant output was sampled at a higher rate than the control input. It was also suggested that only one inter-sampling of the plant output could remove the restrictive identifiability condition required in the ordinary closed-loop identification methods. Under the scheme the closed-loop was identifiable under a low-order controller, designed for a reduced-order nominal plant, without introducing external test signals.

Original languageEnglish
Pages (from-to)1936-1941
Number of pages6
JournalIEEE Transactions on Automatic Control
Issue number12
Publication statusPublished - 2001 Dec


  • Closed-loop identification
  • Identifiability
  • Inter-sampling
  • Persistently exciting (PE)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering


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