Design and implementation of linear‐phase two‐channel perfect reconstruction finite impulse response filter banks with equiripple stopband

Takayuki Nagai, Masaaki Ikehara

    Research output: Contribution to journalArticle

    Abstract

    This paper presents a design and implementation method for the linear phase two‐channel perfect reconstruction finite impulse response (FIR) filter banks with arbitrary filter lengths. This method is labeled a weighted Lagrange‐Newton method; it is obtained by introducing the least squares weighting function into the Lagrange‐Newton method. Filter banks with good stopband attenuation (equiripple stopband) can be designed using this method. Furthermore, a new method is presented that makes the filter banks with a lattice structure using the property of a polyphase component matrix. the filter banks can achieve perfect reconstruction in spite of coefficient quantization.

    Original languageEnglish
    Pages (from-to)27-36
    Number of pages10
    JournalElectronics and Communications in Japan (Part III: Fundamental Electronic Science)
    Volume78
    Issue number12
    DOIs
    Publication statusPublished - 1995 Dec

    Keywords

    • Weighted Lagrange‐Newton method
    • lattice structure
    • perfect reconstruction
    • two‐channel filter banks

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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