ASIA unversity:Item 310904400/17133
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 94286/110023 (86%)
Visitors : 21654528      Online Users : 869
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
    •  Adv. Search
    Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer Goto mobile version


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/17133


    Title: Improved eigenvalue sensitivity for finite-precision digital controller realisations via orthogonal Hermitian transform
    Authors: 游文雄;Yu, Wen-Shyong;柯賢儒;Ko, Hsien-Ju
    Contributors: 光電與通訊學系
    Date: 2003-07
    Issue Date: 2012-11-26 02:22:23 (UTC+0)
    Abstract: "An improved eigenvalue sensitivity is presented for digital controller realisations via the
    orthogonal Hermitian transform, subject to finite word length (FWL) effects. This approach can
    preserve the stability of the closed-loop system when the designed stabilising digital controllers are
    actually implemented with FWL by using the mode of fixed-point arithmetic. A performance index
    defined by eigenvalue sensitivity of the closed-loop system is evaluated by the mixed matrix-2/
    Frobenius norms, so that the eigenvalues of the closed-loop system, from infinite precision after
    using an FWL implemented digital controller, become limited precision, the influence suffered is
    minimal. Then, the optimal similarity transformation for the controller is obtained via the
    orthogonal Hermitian transform. Thus, a minimum bit number used for implementing the
    stabilising digital controllers can be obtained from the performance index and the optimal similarity
    transformation under certain stability criteria. The main contributions are that this approach
    provides an analytical closed-form solution for the optimal transformation and leads to the
    implementation of the stabilising controllers with a lower bit number when using this optimal one.
    Finally, a numerical example is used to illustrate the effectiveness of the proposed scheme."
    Relation: IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS
    Appears in Collections:[Department of Photonics and Communication Engineering] Journal Article

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML386View/Open


    All items in ASIAIR are protected by copyright, with all rights reserved.

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback