Efficient Minimum-Phase Prefilter Computation Using Fast QL-Factorization

Morten Hansen, Lars P.B. Christensen

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    Abstract

    This paper presents a novel approach for computing both the minimum-phase filter and the associated all-pass filter in a computationally efficient way using the fast QL-factorization. A desirable property of this approach is that the complexity is independent on the size of the matrix which is QL-factorized, and thereby the complexity scales with the required precision of the filters and the filter length.
    Original languageEnglish
    Title of host publicationIEEE International Conference on Acoustics, Speech and Signal Processing, 2009. ICASSP 2009.
    PublisherIEEE
    Publication date2009
    ISBN (Print)978-1-4244-2353-8
    DOIs
    Publication statusPublished - 2009
    Event2009 IEEE International Conference on Acoustics, Speech and Signal Processing - Taipei, Taiwan, Province of China
    Duration: 19 Apr 200924 Apr 2009
    Conference number: 34
    http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=4912736

    Conference

    Conference2009 IEEE International Conference on Acoustics, Speech and Signal Processing
    Number34
    Country/TerritoryTaiwan, Province of China
    CityTaipei
    Period19/04/200924/04/2009
    Internet address

    Bibliographical note

    Copyright: 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

    Keywords

    • minimum-phase systems
    • Communications
    • prefiltering
    • fast QL-factorization

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