Body motion noise reduction from wavelet filter scaling level decision with Savitzky-Golay smoothing filter application

摘要

Biosignal acquisition procedure includes noise components from the power sources and the charge variations at electrode contacts. One of main causes of the electrode contact charge variation is the body motion. This paper works on denoising electrocardiography (ECG) signal due to body motion. Wavelet transform reduces noise components of ECG signals, and the proposed smoothing algorithm selectively reduces the motion induced burst signals.