摘要
目的:滤除心电信号中包含的基线漂移、工频干扰、肌电干扰三种主要噪声,获取干净有效的临床心电信号信息。方法:改进阈值处理函数的小波变换阈值去噪法。结论:改进阈值处理函数小波阈值去噪法能更好的弥补了软、硬阈值函数去噪法中存在的不足,得到的去噪效果更优。
Objection： baseline drift,frequency interference and EMG interference three main noises contained in the ECG signal were filtered,in order to obtain clean and effective clinical ECG information.Method： the improved threshold processing function of wavelet transform threshold denoising method.Conclusion： The improved threshold processing function wavelet threshold denoising method could make up of the shortcomings in the soft and hard threshold function de-noising method and get better denoising results.
出处
《中国科技信息》
2012年第8期139-140,共2页
China Science and Technology Information
关键词
小波分析
心电信号
阈值函数
去噪
wavelet analysis
ECG signals
threshold function
denoising
