Design of M-channel perfect reconstruction filterbanks with IIR-FIR hybrid building blocks

Shunsuke Iwamura, Taizo Suzuki, Yuichi Tanaka, Masaaki Ikehara

    Research output: Contribution to journalConference article

    Abstract

    This paper discusses a new structure of M-channel IIR perfect reconstruction filterbanks. A novel design implementation for the new building block defined as a product of an IIR building block and an FIR building block is presented. The IIR building blocks are written by state space representation, in which we can easily obtain a stability of the filterbank by placing its eigen values inside the unit circle. Due to cascading of building blocks, we can get more free parameters. We introduce the condition how we obtain the new building blocks without increasing of the filter order. Additionally, by showing the simulation results, we show that our proposed FBs have better stopband attenuation than a conventional method.

    Original languageEnglish
    JournalEuropean Signal Processing Conference
    Publication statusPublished - 2006 Dec 1
    Event14th European Signal Processing Conference, EUSIPCO 2006 - Florence, Italy
    Duration: 2006 Sep 42006 Sep 8

    Keywords

    • FIR-IIR hybrid building blocks
    • M-channel infinite impulse response perfect reconstruction filterbanks
    • State space representation

    ASJC Scopus subject areas

    • Signal Processing
    • Electrical and Electronic Engineering

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