TY - GEN
T1 - Experiment on Hum Noise Suppression using N-path Notch Filter
AU - Afifah, Khilda
AU - Arijal, Muhammad
AU - Retdian, Nicodimus
AU - Shima, Takeshi
N1 - Funding Information:
ACKNOWLEDGMENT This work is supported by VLSI Design and Education Center(VDEC), the University of Tokyo in collaboration with Synopsys, Inc and Cadence Design Systems, Inc. This work is also partly funded by JSPS KAKENHI Grant Number 16K06318.
Publisher Copyright:
© 2018 IEEE.
PY - 2018/11
Y1 - 2018/11
N2 - Hum noise activity such as power line noise is one of critical problems in biomedical signals processing. Various approaches both analog or digital techniques have been proposed. However, these approaches have some disadvantages. This paper proposes the N-path notch filter as a hum noise suppression. The notch depth in a conventional N-path notch filter depends on the value of off-resistance in the switch. A new N-path notch filter with additional sample-and-hold (S/H) and leak buffer circuit is proposed. Measurement results show with the additional leak buffer circuit improves the notch depth by 61.25dB.
AB - Hum noise activity such as power line noise is one of critical problems in biomedical signals processing. Various approaches both analog or digital techniques have been proposed. However, these approaches have some disadvantages. This paper proposes the N-path notch filter as a hum noise suppression. The notch depth in a conventional N-path notch filter depends on the value of off-resistance in the switch. A new N-path notch filter with additional sample-and-hold (S/H) and leak buffer circuit is proposed. Measurement results show with the additional leak buffer circuit improves the notch depth by 61.25dB.
KW - EEG
KW - Hum noise suppression
KW - N-path notch filter
UR - http://www.scopus.com/inward/record.url?scp=85077025401&partnerID=8YFLogxK
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U2 - 10.1109/ISPACS.2018.8923266
DO - 10.1109/ISPACS.2018.8923266
M3 - Conference contribution
AN - SCOPUS:85077025401
T3 - ISPACS 2018 - 2018 International Symposium on Intelligent Signal Processing and Communication Systems
SP - 519
EP - 522
BT - ISPACS 2018 - 2018 International Symposium on Intelligent Signal Processing and Communication Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2018
Y2 - 27 November 2018 through 30 November 2018
ER -