A fast adaptive filter for electrocardiography

被引：0

作者：

Acharya, S ^{[1
]}

Mugler, DH ^{[1
]}

Taylor, BC ^{[1
]}

机构：

[1] Univ Akron, Dept Biomed Engn, Akron, OH 44325 USA

来源：

PROCEEDINGS OF THE IEEE 30TH ANNUAL NORTHEAST BIOENGINEERING CONFERENCE | 2004年

关键词：

ECG; power line interference; adaptive filter;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A new adaptive filter structure is proposed to reduce power line interference from ECGs. It is based on the principle of continuously tracking the Frequency, Amplitude and Phase of the noise, using a modified form of the Short Time Fourier Transform. This information is used to reconstruct the noise signal, which is then subtracted from the noisy ECG. The method was tested using ECGs from the MIT-BIH database with superimposed noise of varying amplitude and frequency (60 Hz +/- 5 Hz). It was found to be efficient even at low sampling rates. The process is computationally simple enough for real time implementation. It also obviates the need for a reference input. This technique can be applied to many other bipotential signals, and can be adapted for hardware implementation.

引用

页码：106 / 107

页数：2

共 5 条

[1]

HUNTA JC, 1973, IEEE T BIOMED ENG, V20

[2]

LIMACHER IR, 1996, P EUR TEL C GARMSCH, P300

[3] APPLICATIONS OF ADAPTIVE FILTERING TO ECG ANALYSIS - NOISE CANCELLATION AND ARRHYTHMIA DETECTION [J].