摘要
人体脉象信号是一种信噪比较低的非平稳随机信号,在分析之前去噪是一项十分重要的工作.该文研究了小波变换的3种去噪方法,并对临床记录的脉象信号进行了去噪处理.实验结果表明,平移不变量法对脉象信号的去噪效果最好.
The pulse signal is a kind of weak signal with lower SNR. De-noising of the pulse signal is important before the analysis. This paper studied three kinds of de-noising methods and had the clinic pulse signal de-noised. The results showed that the translation invariant de-noising method had the best effect for the pulse signal.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第S1期84-86,共3页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(69701002)
陕西省自然科学基金资助项目(2001X28)
关键词
脉搏信号
小波变换
去噪
pulse signal
wavelet transform
de-noising
