小波阈值去噪技术在ECG信号处理中的应用

The Use Of Wavelet Threshold Denoising In the ECG Signals’Processing

本文采用小波阈值去噪方法,利用了小波变换多分辨率的特点,它对信号具有自适应性,可以降低消噪算法的复杂程度,又可保证心电信息特征不被丢失。试验表明,该方法能较好地实现心电信号的消噪,同时也适合于信噪比较低的生物信号的处理中。

In this paper,we use the wavelet threshold denoising method which take use of the multi-resolution feature of the wavelet transform. It has a adaptation characteristic to the signal and not only simplifies the complexity of calculation in the noise rejection method,but also preserves the characteristics of ECG..Experiments show that this method eliminates the noise effectively and could also apply to the biomedical signal processing with lower ratio of signal-noise meanwhile.