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    A direct optimization method for low group delay FIR filter design

    197520_197520.pdf (255.0Kb)
    Access Status
    Open access
    Authors
    Wu, Changzhi
    Gao, David
    Teo, Kok Lay
    Date
    2013
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wu, Changzhi and Gao, David and Teo, Kok Lay. 2013. A direct optimization method for low group delay FIR filter design. Signal Processing. 93 (7): pp. 1764-1772.
    Source Title
    Signal Processing
    DOI
    10.1016/j.sigpro.2013.01.015
    ISSN
    0165-1684
    School
    of Technlogy
    Remarks

    NOTICE: this is the author’s version of a work that was accepted for publication in Signal Processing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Signal Processing, Vol. 93, No. 7 (2013). DOI: 10.1016/j.sigpro.2013.01.015

    URI
    http://hdl.handle.net/20.500.11937/30635
    Collection
    • Curtin Research Publications
    Abstract

    This paper studies the design of FIR filter with low group delay, where the desired phase response is not being approximated. It is formulated as a constrained optimization problem, which is then solved globally. Numerical experiments show that our design method can produce a filter with smaller group delay than that obtained by the existing convex optimization method used in conjunction with a minimum phase spectral factorization method under the same design criteria. Furthermore, our formulation offers us the flexibility for the trade-off between the group delay and the magnitude response directly. It also allows the feasibility of imposing constraints on the group delay.

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