アナログ順フィルタとディジタル逆フィルタを用いた相補的な帯域拡張法と非接触心電計測への応用
アナログ順フィルタとディジタル逆フィルタを用いた相補的な帯域拡張法と非接触心電計測への応用
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: 2011/11/01
タイトル(英語): Complementary Bandwidth Extension Method Using Analog Forward and Digital Inverse Filters and Its Application to Noncontact ECG Measurement
著者名: 小和田 大輔(東京電機大学大学院工学研究科電気電子工学専攻),植野 彰規(東京電機大学大学院工学研究科電気電子工学専攻)
著者名(英語): Daisuke Kowada (Department of Electrical and Electronic Engineering, Graduate School of Engineering, Graduate School of Tokyo Denki University), Akinori Ueno (Department of Electrical and Electronic Engineering, Graduate School of Engineering, Graduate School of Tokyo Denki University)
キーワード: 帯域拡張方式,容量型心電計,T波,QT間隔 bandwidth extension method,capacitive-type electrocardiogram,T-wave,QT interval
要約(英語): In this paper, we propose a novel method for extending bandwidth of ECG measuring device without deteriorating the baseline tolerance for body motion. The proposed method is realized by synthesizing a two-stage analog forward filter with two different corner frequencies and a digital inverse filter having a corner frequency identical with the higher one of the analog filter. We applied the method to bed-type capacitive ECG sensor which can detect electrocardiographic potential non-intrusively and indirectly. The results demonstrated that the proposed method could precisely recover low-frequency components like T-wave. Furthermore, we confirmed that QTc (corrected QT interval) could be estimated from the recovered wave and that the QTc correlated 0.81 on the average with that obtained from Lead II ECG for seven subjects. These results indicate that the proposed method is useful to screening of long QT syndrome by combining the method with the bed-type capacitive ECG sensor.
本誌: 電気学会論文誌C(電子・情報・システム部門誌) Vol.131 No.11 (2011) 特集:電気関係学会関西連合大会
本誌掲載ページ: 1966-1974 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/131/11/131_11_1966/_article/-char/ja/
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