New lattice structure of M-channel paraunitary filterbanks

Yuhiro Kobayashi, Masaaki Ikehara

    研究成果: Article査読

    抄録

    This paper proposes a new lattice structure for the M-channel paraunitary filterbank. When a filterbank is realized by using a lattice structure, there is an advantage that properties such as phase linearity and the paraunitarity can be retained if the coefficients are quantized. A large number of lattice structures have been proposed, but there remains the problem that the proposed structures contain redundancy. This paper first eliminates the redundancy from the lattice structure and presents a new lattice structure for the generalized filterbank without restrictions such as phase linearity. Based on the proposed structure and restricting the parameters, a pairwise mirror image filterbank structure is presented. Finally, the usefulness of the approach is demonstrated by simulation.

    本文言語English
    ページ(範囲)12-19
    ページ数8
    ジャーナルElectronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi)
    88
    6
    DOI
    出版ステータスPublished - 2005 6 1

    ASJC Scopus subject areas

    • 電子工学および電気工学

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