以离散平稳小波变换的心电信号噪声去除方法为基础，根据噪声的不同来源及其频带分布特点，对变换后的细节信号采用不同的阈值去噪方案。并提出一种基于准则原理的阈值选取方法。经国际标准数据库中验证，试验表明，该方法行之有效-With discrete stationary wavelet transform of ecg signal to noise removal method as the foundation, according to the different sources of noise

采用小波变换会有效去除心电信号噪声，本文根据心电信号的特点,采用了小波闭值去噪和模极大值去噪,这两种方法都达到去噪效果-Using wavelet transform can effectively remove ecg signal to noise, this paper based on the characteristics of ecg signal, the wavelet threshold denoising and closed modulus maxima de-noisin