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Partial state and unknown input estimation for time-delay systems

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  • P.S. Teh
  • H. Trinh

Abstract

This article considers the problem of estimating a partial set of the state vector and/or unknown input vector of linear systems driven by unknown inputs and time-varying delay in the state variables. Three types of reduced-order observers, namely, observers with delays, observers without internal delays and delay-free observers are proposed in this article. Existence conditions and design procedures are presented for the determination of parameters for each case of observers. Numerical examples are presented to illustrate the design procedures.

Suggested Citation

  • P.S. Teh & H. Trinh, 2012. "Partial state and unknown input estimation for time-delay systems," International Journal of Systems Science, Taylor & Francis Journals, vol. 43(4), pages 748-763.
    • Handle: RePEc:taf:tsysxx:v:43:y:2012:i:4:p:748-763
    DOI: 10.1080/00207721.2010.521866
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    Cited by:

    1. Reza Mohajerpoor & Lakshmanan Shanmugam & Hamid Abdi & Saeid Nahavandi & Mehdrad Saif, 2017. "Functional observer design for retarded system with interval time-varying delays," International Journal of Systems Science, Taylor & Francis Journals, vol. 48(5), pages 1060-1070, April.

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