Frequency domain approach to closed-loop identification based on output inter-sampling scheme

Lianming Sun, Hiromitsu Ohmori, Akira Sano

Research output: Contribution to journalConference article

10 Citations (Scopus)


A novel frequency domain closed-loop identification algorithm is proposed using the output inter-sampling scheme. It is illustrated that the inter-sampled plant output has cyclostationary property that can be used to eliminate the correlation between the plant input and output noise even though no persistently exciting test signal is available. It can be applied for the unstable plant identification problem, and can be extended to the situation where the output disturbance noise is colored. An experiment of magnetic suspension system is performed to demonstrate the effectiveness of the proposed approach.

Original languageEnglish
Pages (from-to)1802-1806
Number of pages5
JournalProceedings of the American Control Conference
Publication statusPublished - 2000 Dec 1
Event2000 American Control Conference - Chicago, IL, USA
Duration: 2000 Jun 282000 Jun 30


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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