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    Design of discrete Fourier transform modulated filter bank with sharp transition band

    Access Status
    Fulltext not available
    Authors
    Wu, C.
    Teo, Kok Lay
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Wu, C.Z. and Teo, K.L. 2011. Design of discrete Fourier transform modulated filter bank with sharp transition band. IET Signal Processing. 5 (4): pp. 433-440.
    Source Title
    IET Signal Processing
    DOI
    10.1049/iet-spr.2009.0269
    ISSN
    17519675
    School
    Department of Mathematics and Statistics
    URI
    http://hdl.handle.net/20.500.11937/2862
    Collection
    • Curtin Research Publications
    Abstract

    The authors consider a high-performance discrete Fourier transform (DFT)-modulated finite impulse response (FIR)filter bank with sharp transition width. The design of this filter bank is very expensive by the standard method, and hence thefrequency response masking (FRM) technique is developed so as to reduce the complexity in the design process.The relationship between the interpolator in the FRM structure and the channel number of the filter bank is established. Theauthors formulate the optimum design of a DFT-modulated filter bank with sharp transition band as a non-linear optimisationproblem with continuous inequality constraints. An effective approach is proposed to solve this optimisation problem. To illustrate the effectiveness of the proposed method, simulation examples are presented.

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