Uniform filter bank containing N-path digital filter

Masaaki Ikehara, Shinichi Takahashi

Research output: Contribution to journalArticle

Abstract

This paper presents a construction method of a uniform filter bank using an N-path digital network. This filter bank is constructed by connecting an N-path digital network to DFT polyphase filter banks. First, the input signal is divided into two parts by an N-path digital network and its complement. These resulting output signals are separately band-split and synthesized by DFT polyphase filter banks. A design method of the low-pass digital filter using this digital filter bank is presented. The low-pass filter with cutoff near π/2 which cannot be obtained easily in the usual multirate digital filter, can be realized by using these filter banks.

Original languageEnglish
Pages (from-to)62-70
Number of pages9
JournalElectronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume72
Issue number5
Publication statusPublished - 1989 May

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Switched filters
Filter banks
Digital filters
Low pass filters
Design for testability
Discrete Fourier transforms

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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