A Comparative Study of Finite Word Length Coefficient Optimization of FIR Digital Filters

Gurvinder S. Baicher, Meinwen Taylor, Hefin Rowlands

    Allbwn ymchwil: Pennod mewn Llyfr/Adroddiad/Trafodion CynhadleddCyfraniad i bennod aralladolygiad gan gymheiriaid

    Crynodeb

    The accuracy of a real-time digital filter frequency response is affected by the finite word length (FWL) constraint of coefficients used in its implementation. In this paper, we consider the FWL problem in regard to the finite impulse response (FIR) digital filters. Some theoretical issues and statistical error bound conditions of the maximum deviation between the exact and the approximate magnitude responses are also considered. We use real-valued genetic algorithms (GA) as an optimisation tool and derive results for the maximum error bounds and error deviation due to FWL effects for a number of design examples. Finally, a comparison is drawn between the simply rounded, the GA optimised, integer programming and the simple hill climber methods.
    Iaith wreiddiolSaesneg
    TeitlAdvances in Natural Computation
    Is-deitlFirst International Conference, ICNC 2005, Changsha, China, August 27-29, 2005, Proceedings, Part III
    GolygyddionLipo Wang, Ke Chen, Yew Soon Ong
    Man cyhoeddiBerlin
    CyhoeddwrSpringer
    Tudalennau877-882
    ISBN (Electronig)978-3-540-31863-7
    ISBN (Argraffiad)978-3-540-28320-1
    Dynodwyr Gwrthrych Digidol (DOIs)
    StatwsCyhoeddwyd - 2005
    DigwyddiadFirst International Conference on Natural Computation - Changsha, Tsieina
    Hyd: 27 Aug 200529 Aug 2005

    Cyfres gyhoeddiadau

    EnwLecture Notes in Computer Science
    CyhoeddwrSpringer
    Cyfrol3612
    ISSN (Argraffiad)0302-9743
    ISSN (Electronig)1611-3349

    Cynhadledd

    CynhadleddFirst International Conference on Natural Computation
    Teitl crynoICNC 2015
    Gwlad/TiriogaethTsieina
    DinasChangsha
    Cyfnod27/08/0529/08/05

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