Removing artifacts from atrial epicardial signals during atrial fibrillation
Jian-Hung Liu, Tsair Kao · 2003
Atrial fibrillation (AF) is the most common arrhythmia encountered in clinical practice. Adaptive noise canceller (ANC) and independent component analysis (ICA) are powerful tools for separating signals from their mixtures. For better understanding of the mechanism and characteristics of AF, the artifacts were eliminated in the measured signals from atrial. We use ANC to subtract the influences of ventricle from the recorded signals, and manipulate the ICA technique to remove other artifacts so as to improve the signal-to-noise ratio of atrial signals.