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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/10159

    Title: A new canonical expansion of z-transfer function for reduced-order modeling of discrete-time systems
    Authors: Hwang, C.;Hsieh, C.S.
    Contributors: 輔英科技大學 應用化學及材料科學系
    Date: 1989-12
    Issue Date: 2010-11-18 16:48:50 (UTC+8)
    Abstract: On the basis of the unique decomposition of a polynomial into a mirror image polynomial (MIP) and an antimirror image polynomial (AMIP) and the expansion of A.M. Davis' discrete reactance function (ibid., vol.CAS-29, no.10, p.658-62, 1982) into a continued fraction which proceeds in terms of z/(z-1) and 1/(z-1) alternately, a new canonical expansion of the z-transfer function is presented. Although it has the same structure as the Routh canonical expansion of the s-transfer function, the new canonical expansion is suitable for deriving reduced-order models of discrete-time systems by direct truncation. Using this canonical expansion, frequency- and time-domain reduced-order modeling procedures are derived. The necessary and sufficient conditions imposed on the continued-fraction expansion of Davis' discrete reactance function for reduced-order models to be stable are also derived. It is shown that the reduced model has the partial Pade approximation property
    Relation: Circuits and Systems, IEEE Transactions on ,Volume: 36 Issue:12,page: 1497 - 1509
    Appears in Collections:[應用化學及材料科學系] 期刊論文

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