稀疏信号的盲源分离求解方法提取胎儿心电信号

A New Method of Extracting FECG by BSS of Sparse Signal

心电信号是具有稀疏特性的信号,本文提出了用稀疏信号盲源分离求解的方法提取胎儿心电信号(FECG)。结合小波分析以及本文中提出的一种新方法——弭灭圆法,避免了因心电信号不是理想稀疏信号而对信源的可识别性造成的影响。仿真实验证明该方法是一种非常有效的方法。

The electrocardiograph signal presents the sparseness. In this paper, a new method of extracting the Fetal Electrocardiograph （FECG） is proposed, which uses the Blind Source Separation（BSS） of Sparse Signal. Both the Wavelet Analysis method and a new scheme named Vanish Circle are also involved in order to avoid the influence on the signal separation, because the ECG signals are not completed sparse signals. Some experiments show that the new method is effective.