Design of narrow‐band FIR filters using interpolation technique

Masanori Hoshino, Masaaki Ikehara, Shin‐Ichi ‐I Takahashi

    Research output: Contribution to journalArticle

    1 Citation (Scopus)

    Abstract

    It is an important realization of digital filters to reduce the amount of hardware, notably multipliers. This paper proposes a cascade connection of IFIR (Interpolated FIR) filters by which a steep characteristic can be obtained with a small number of multipliers in most cases. the reduction of the multipliers is achieved by the determination of the transfer function of the overall cascade connection (not each element) by using the Lnorm approximation. This method also has an advantage in that its central frequency can be determined arbitrarily. the cascade connection of several elements reduces the degrading of its characteristic caused by the quantized coefficients as shown in examples, since the conditions required for each element are relaxed in this structure.

    Original languageEnglish
    Pages (from-to)75-85
    Number of pages11
    JournalElectronics and Communications in Japan (Part III: Fundamental Electronic Science)
    Volume72
    Issue number9
    DOIs
    Publication statusPublished - 1989

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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