Design of N-path notch filter circuits for hum noise suppression in biomedical signal acquisition

Khilda Afifah, Nicodimus Retdian

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Hum noise such as power line interference is one of the critical problems in the biomedical signal acquisition. Various techniques have been proposed to suppress power line interference. However, some of the techniques require more components and power consumption. The notch depth in the conventional N-path notch filter circuits needs a higher number of paths and switches off-resistance. It makes the conventional N-path notch filter less of efficiency to suppress hum noise. This work proposed the new N-path notch filter to hum noise suppression in biomedical signal acquisition. The new N-path notch filter achieved notch depth above 40dB with sampling frequency 50Hz and 60Hz. Although the proposed circuits use less number of path and switches off-resistance. The proposed circuit has been verified using artificial ECG signal contaminated by hum noise at frequency 50Hz and 60Hz. The output of N-path notch filter achieved a noise-free signal even if the sampling frequency changes.

本文言語English
ページ(範囲)480-488
ページ数9
ジャーナルIEICE Transactions on Electronics
E103C
10
DOI
出版ステータスPublished - 2020 10 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

フィンガープリント

「Design of N-path notch filter circuits for hum noise suppression in biomedical signal acquisition」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル