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Decomposition of ECG by linear filtering

Murthy, SN and Niranjan, UC (1992) Decomposition of ECG by linear filtering. In: Computers in Biology and Medicine, 22 (1-2). pp. 13-22.

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Abstract

A simple method is developed for the delineation of a given electrocardiogram (ECG) signal into its component waves. The properties of discrete cosine transform (DCT) are exploited for the purpose. The transformed signal is convolved with appropriate filters and the component waves are obtained by computing the inverse transform (IDCT) of the filtered signals. The filters are derived from the time signal itself. Analysis of continuous strips of ECG signals with various arrhythmias showed that the performance of the method is satisfactory both qualitatively and quantitatively. The small amplitude P wave usually had a high percentage rms difference (PRD) compared to the other large component waves.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science Ltd.
Keywords: ECG analysis;Component delineation;Arrhythmia;Linear filtering;DCT;DFTM;PRD;FIR filter design
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 25 Mar 2008
Last Modified: 19 Sep 2010 04:43
URI: http://eprints.iisc.ernet.in/id/eprint/13482

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