论心电信号检测中的噪声与干扰及其消除方法  

Noise and interference in ECG signal detection and eliminating methods

作　　者：彭飞武[1] 熊平[1] 蔡晓珠 刘建庭[1] 傅伟[1] 

机构地区：[1]中南大学信息物理工程学院 [2]解放军96169部队医院

出　　处：《医疗卫生装备》2007年第9期72-74,共3页Chinese Medical Equipment Journal

摘　　要：目的:认识心电信号是从体表检测到的心脏电生理信号,它对心脏疾病的诊断意义重大。方法:强调在心电信号检测过程中,很容易受到噪声(干扰)的影响,如随机噪声、工频干扰、检测系统的内部噪声等。结果:分析了心电检测中各种噪声和干扰产生的原因及消除和减小噪声(干扰)的方法。结论:为了尽可能地消除噪声(干扰),又不使检测到的心电信号失真,这就需要改进采集电路、滤波电路,运用新的运算方法。Objective To know the significance of ECG signal in heart disease diagnosis.Methods Influential factors in ECG signal detection were analyzed including random noise,power frequency interference,inner noise from detection system,etc.Results The causes of all noises and interferences are analyzed as well as eliminating or reducing methods.Conclusion In order to eliminate noises without distortion of ECG signals,acquisition circuit and filter circuit should be improved and new algorithm should be used.

关 键 词：心电信号 检测 噪声 信号处理 

分 类 号：TH772[机械工程—仪器科学与技术]