Optimization of bi-directional digital filtering for drift suppression in electrocardiogram signals
1Centre of Biomedical Engineering, Bulgarian Academy of Sciences, Sofia. iadoc@argo.bas.bg
Journal of Medical Engineering & Technology
|September 17, 2004
Abstract:
Baseline drift may often impede automatic ECG measurement and interpretation. Known methods for drift suppression do not take into consideration specific waveform parameters of various ECG signals. We propose high-pass filtering with adaptable cut-off frequency in order to keep RS amplitude changes below a selectable threshold and to preserve ST segment shape within acceptable limits.
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