低遅延特性を有する低域通過最大平たんFIRディジタル微分器の伝達関数

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2016/02/01

タイトル(英語): Transfer Function of the Reduced-Delay Low-Pass Maximally Flat FIR Digital Differentiators

著者名: 吉田　嵩（東京理科大学基礎工学部電子応用工学科），相川　直幸（東京理科大学基礎工学部電子応用工学科）

著者名(英語): Takashi Yoshida (Department of Applied Electronics, Tokyo University of Science), Naoyuki Aikawa (Department of Applied Electronics, Tokyo University of Science)

キーワード: FIRディジタル微分器，低遅延，低域通過，最大平たん，閉じた式　　FIR digital differentiators，reduced-delay，low-pass，maximally flat criterion，a closed-form solution

要約(英語): The maximally flat FIR digital differentiators have extremely high accuracy around their center frequency. Especially, when high-accurate differentiation is required in the low frequency, the low-pass maximally flat FIR digital differentiators are very useful. However, the conventional low-pass maximally flat FIR digital differentiators have large delay because of the linear phase property. In this paper, we describe a design method of the low-pass maximally flat FIR digital differentiators with reduced delay. The proposed transfer function is derived as a closed-form solution. The proposed differentiators realize the magnitude response which consists of the flat differentiator band around ω = 0 and the flat stop band around the frequency ω = π. Simultaneously, the proposed differentiators realize reduced delay response. The proposed differentiators can also realize the linear phase response, so that the proposed method includes the conventional design methods of the low-pass maximally flat FIR digital differentiators.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.136 No.2 （2016）

本誌掲載ページ: 157-164 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/136/2/136_157/_article/-char/ja/