Design and lattice structure of FIR paraunitary filter banks with linear phase

Takayuki Nagai, C. W. Kok, Masaaki Ikehara, Truong Q. Nguyen

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)


    In this paper, we present a novel way to design biorthogonal and paraunitary linear phase filter banks. The square error of the perfect reconstruction of the filter bank is expressed in quadratic form of filter coefficients and the cost function is minimized by solving linear equation iteratively without nonlinear optimization. With some modifications, this method is extended to the design of paraunitary filter banks. Furthermore, the lattice structure of odd-channel paraunitary filter banks is also derived. Design examples are given to validate the proposed method.

    Original languageEnglish
    Pages (from-to)712-720
    Number of pages9
    JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
    Issue number4
    Publication statusPublished - 1997 Jan 1


    • Filter banks
    • Lattice structure
    • Linear phase

    ASJC Scopus subject areas

    • Signal Processing
    • Computer Graphics and Computer-Aided Design
    • Electrical and Electronic Engineering
    • Applied Mathematics


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