Wavelet and Wavelet Packet Transform Analysis in the ECG Signals of Atrial Fibrillation
In this paper, the application of wavelet transform (WT) and wavelet packet transform (WPT) for ECG signals of atrial fibrillation (AF) is presented. Original ECG signals of AF are de-noised, reconstructed and decomposed by WT and WPT. Entropies of each node of the reconstructed ECG signal of AF are calculated. Based on the best basis method and the MDL (minimum description length) criterion, for the given entropy-log energy entropy, the optimal wavelet packet tree of the reconstructed ECG signal of AF is established. Ultimately, the non-terminating and the short-time terminating AF are successfully differentiated via the difference of entropies of two types of AF.
Atrial fibrillation Wavelet transform Wavelet packet transform Log energy entropy Optimal wavelet packet tree
Shaoyu Qiao Ping Zhou
School of Biomedical Engineering, Capital Medical University, Beijing, 100069, China
国际会议
北京
英文
1794-1797
2007-05-23（万方平台首次上网日期，不代表论文的发表时间）