The use of simple FIR filters for filtering of ECG signals and a new method for post-filter signal reconstruction

Author

Slonim, T-YM ; Slonim, MA ; Ovsyscher, EA

Author_Institution

Dept. of Electr. Eng. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel

fYear

1993

fDate

5-8 Sep 1993

Firstpage

871

Lastpage

873

Abstract

Discusses new methods for ECG filtering and a novel approach to post-filter reconstruction. Oversampling (5 kHz sampling rate), which allows good results to be obtained, is used. Simple IT-shaped (time-domain) FIR filters were employed. A novel method for post-filter signal reconstruction was developed. Samples of real and artificial ECG signals enhanced with artificial noise (white and/or network noise, 10% in amplitude) were tested. For each filtering, there followed a matching reconstruction, and the outcome was compared to the original signal. The results achieved are: (a) the errors were less than 0.6%; (b) the peak-nature of the ECG signals-the reconstructed peaks were very close to the original ones; (c) the amplitude-after reconstruction the outcoming amplitudes were very close to the originals

Keywords

FIR filters; electrocardiography; medical signal processing; signal reconstruction; 5 kHz; ECG filtering methods; artificial ECG signals; artificial noise; oversampling; post-filter signal reconstruction method; real ECG signals; reconstructed peaks; simple FIR filters; time-domain filters; Electrocardiography; Filtering; Finite impulse response filter; Matched filters; Noise level; Sampling methods; Signal reconstruction; Testing; Time domain analysis; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1993, Proceedings.

Conference_Location

London

Print_ISBN

0-8186-5470-8

Type

conf

DOI

10.1109/CIC.1993.378347

Filename

378347