基于心电信号的脉搏波形特征点提取  

A Method of Feature Points Extracting for Pulse Wave Signal Based on ECG

作　　者：赵治月[1] 张爱华[1] 杨华[1] 

机构地区：[1]兰州理工大学电气工程与信息工程学院,兰州730050

出　　处：《北京生物医学工程》2011年第1期51-56,共6页Beijing Biomedical Engineering

基　　金：国家自然科学基金(30670529)资助

摘　　要：为寻求一种精确的脉搏波特征提取方法,提取更多的脉搏波形特征,揭示心电脉搏在时域上的相关性,使用MP425数据采集卡和LabVIEW构成的数据采集系统同步采集ECG信号和脉搏波信号,对ECG信号和脉搏波信号进行分析和处理,采用能量算子法检测心电信号R波;基于同步采集的ECG和脉搏波信号,提出一种应用ECG信号的R波和T波来提取Pulse wave的重搏波和峰值的方法。经过分析与实验验证,该方法能准确找到脉搏波波峰和重搏波位置,并具有较强的抗干扰能力,为研究心电脉搏之间的关系提供了一种新的方法。In order to explore an accurate method of pulse waveform feature extracting, detect more pulse waveform features and reveal the correlation between electrocardiogram （ECG） and pulse in the time domain,ECG signals and pulse wave signals were collected from the subjects by using the MP425 card and LabVIEW acquisition system. The ECG signals and the pulse wave signals were analyzed and processed. The R-wave of ECG was detected by using the method of teager energy operator（ TEO）. Based on synchronized ECG and pulse wave signals, a method was proposed for detecting the characteristic points of pulse wave by R-wave and T-wave of ECG. After analysis and experimental verification, it was proved that the positions of pulse peek and dicrotic wave in pulse waveform were exactly determined by proposed method, that had strong interferencefree ability, and provided a new approach for exploring the relation between ECG and pulse wave.

关 键 词：心电 脉搏 信号处理 相关性分析 

分 类 号：R318.04[医药卫生—生物医学工程]