Simple Approach for Tremor Suppression in Electrocardiograms

Abstract: Electrocardiogram recordings are very often contaminated by high-frequency noise usually power-line interference and EMG disturbances (tremor). Filtering out the tremor remains a priori partially successful since it has a relatively wide spectrum, which overlaps the useful ECG frequency band by aperiodic noise. The proposed simple approach for tremor suppression uses heuristic relations between the ECG signal parts and parameters of the applied moving averaging. The results obtained are assessed and compared to tremor suppression obtained by moving averaging with constant sample numbers throughout the signal.