Recursive Identification of Fractional Time-Delay Systems Using Discrete-Time Model

Toshiaki Higo, Takahiro Kawaguchi, Masaki Itamoto, Shuichi Adachi

Research output: Contribution to journalArticle

Abstract

In this paper, a recursive identification method for fractional time-delay systems using a discrete-time model is proposed. The fractional time delay is a non-integer multiple of the sampling period for the discrete-time system. We describe the discretization of the fractional time-delay systems and propose a new formulation for system identification. Single-input, single-output systems are transformed to two-input, single-output systems: one transfer function represents system dynamics and the other represents the influence of the time delay. Then, we propose a new recursive identification method for fractional time-delay systems. Finally we verify the effectiveness of the proposed method through numerical examples.

Original languageEnglish
Pages (from-to)939-944
Number of pages6
JournalIFAC-PapersOnLine
Volume51
Issue number15
DOIs
Publication statusPublished - 2018 Jan 1

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Time delay
Identification (control systems)
Transfer functions
Dynamical systems
Sampling

Keywords

  • Discretization
  • Fractional time delay
  • Recursive identification
  • Time-delay systems

ASJC Scopus subject areas

  • Control and Systems Engineering

Cite this

Recursive Identification of Fractional Time-Delay Systems Using Discrete-Time Model. / Higo, Toshiaki; Kawaguchi, Takahiro; Itamoto, Masaki; Adachi, Shuichi.

In: IFAC-PapersOnLine, Vol. 51, No. 15, 01.01.2018, p. 939-944.

Research output: Contribution to journalArticle

Higo, Toshiaki ; Kawaguchi, Takahiro ; Itamoto, Masaki ; Adachi, Shuichi. / Recursive Identification of Fractional Time-Delay Systems Using Discrete-Time Model. In: IFAC-PapersOnLine. 2018 ; Vol. 51, No. 15. pp. 939-944.
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