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    A hybrid descent method for optimal sigmoid filter design

    198328_198328.pdf (365.5Kb)
    Access Status
    Open access
    Authors
    Chan, Kit
    Nordholm, Sven
    Low, S.
    Yong, Pei
    Yiu, Ka Fai
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Chan, Kit Yan and Nordholm, Sven and Low, Siow Yong and Yong, Pei Chee and Yiu, Ka Fai Cedric. 2014. A hybrid descent method for optimal sigmoid filter design. IEEE Signal Processing Letters. 21 (4): pp. 478-482.
    Source Title
    IEEE Signal Processing Letters
    DOI
    10.1109/LSP.2014.2303498
    ISSN
    1070-9908
    Remarks

    Copyright © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

    URI
    http://hdl.handle.net/20.500.11937/41143
    Collection
    • Curtin Research Publications
    Abstract

    In this letter, a hybrid descent method is used to determine a set of filter parameters for a sigmoid filter which attempts to work under various SNR conditions. It overcomes the limitations of the current sigmoid filters that performs effectively only at a single SNR. Results show that significant improvement in terms of better speech qualities can be achieved by the proposed sigmoid filter when working under various SNR conditions.

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