Time-Domain Multi-Level R-Peak Detection Algorithm for ECG Signal Processing*

For the applications of automatic disease diagnosis based on electrocardiogram (ECG) signals, precise R-peak detection is crucial in ECG signal analysis. In this work, we propose a time-domain multi-level detection algorithm for R-peak detection in ECG signals. The proposed R-peak detection algorithm is an adaptive threshold-based method, which maintains very good accuracy with low computational complexity. In addition, the proposed algorithm does not distort the original ECG signals for facilitating disease diagnosis based on ECG signals.