|Table of Contents|

A Method to Remove ECG Disturb in EMGdi Signal(PDF)

南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2016年04期
Page:
22-
Research Field:
电气与电子工程
Publishing date:

Info

Title:
A Method to Remove ECG Disturb in EMGdi Signal
Author(s):
Wang Keqi1Yang Zhi2Xu Qingyuan1
(1.Nanfang College,Sun Yat-sen University,Guangzhou 510970,China)(2.School of Electronics and Information Technology,Sun Yat-sen University,Guangzhou 510006,China)
Keywords:
EMGdiECGwavelet transformself-adaptive filtering
PACS:
TP24
DOI:
10.3969/j.issn.1672-1292.2016.04.004
Abstract:
In order to remove electrocardiograph(ECG)interference in electromyography of diaphragm(EMGdi)signal,a cancellation technique with a combination of wavelet decomposition and reconstruction and adaptive filtering is presented in this paper. Firstly,the low frequency components of EMGdi signal containing ECG are separated out by wavelet decomposition. Secondly,the low frequency components obtained are filtered by the adaptive filter in order to lower the EMGdi and highlight the ECG. Then the ECG noise obtained by filtering is removed from the EMGdi signal. Finally,the EMGdi signal with less ECG interference is obtained by wavelet reconstruction. By comparing the results of real clinical signal with those of simple high-pass filtering,it shows that Signal-to-Noise Ratio and power spectrum had distinctly improved.

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Last Update: 2016-12-31