基于小波消噪与关联维数的经穴电位信号研究  

Research on Meridian Potential Signal Based on Wavelet De-noising and Correlation Dimension

作　　者：李江[1] 王晓倩[1] 

机构地区：[1]浙江大学控制科学与工程系,杭州310027

出　　处：《计算机工程》2015年第9期276-280,共5页Computer Engineering

摘　　要：穴位点在中医邻域具有相对于非穴位点的特殊治疗效果。为此,提出一种基于小波去噪和关联维数的经穴电位信号分析方法。采集大陵、曲泽和尺泽3个穴位点及其附近的非穴位点电位信号,小波去噪后进行混沌特征分析,求取关联维数和最大李雅普诺夫指数,观察穴位点和非穴位点特征差异。实验结果表明,穴位点电位的关联维数高于其附近非穴位点电位的关联维数。Considering the issue of acupuncture theory is quetioned regardless of acupoints＇ efficacy compared with the non-acupoints,a method for meridian potential signal analysis based on wavelet de-noising and correlation demension is presented. Potential signals of PC7 ,PC3,LU5 and non-acupuncture points near them are sampled,denoising the sampled signals with the help of wavelet. Chaotic features analysis method is taken, which calculates the correlation dimension and the largest Lyapunov exponent. By comparing the chaotic parameters,the potential differences between acupuncture points and non-acupuncture points will be identified. Data analysis shows correlation dimension of acupuncture point potential is higher than that of the non-acupuncture points.

关 键 词：小波 混沌 非线性 经穴电位 关联维数 最大李雅普诺夫指数 

分 类 号：TN911.72[电子电信—通信与信息系统]