心电信号数字滤波器的设计与实现  

Design and Implementation of Digital Filter for ECG Signal

作　　者：杨志方[1] 陈珏[1] 胡梦蝶[1] 王磊[1] YANG Zhifang;CHEN Jue;HU Mengdie;WANG Lei(School of Electrical and Information Engineering, Wuhan Institute of Technology, Wuhan 430074, Chin)

机构地区：[1]武汉工程大学电气信息学院,湖北武汉430074

出　　处：《湖北民族学院学报（自然科学版）》2017年第1期71-75,共5页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：湖北省自然科学基金项目(2014CKC524)

摘　　要：心电信号是心脏疾病的重要医学诊断依据.为获取具有实用价值的诊断信息,介绍在心电信号处理中滤波算法的实现,探讨针对心电信号的工频干扰和肌电干扰的数字滤波方法,选取有效的滤波算法用于消除和抑制工频干扰、肌电干扰.通过对采集到的离散心电数据和理想心电信号相比较,设计出对工频干扰和肌电干扰进行处理的数字滤波器方案,利用Matlab仿真技术进行比较和分析,从而得到较为理想的心电信号.实验表明,选取的心电数字滤波方法能达到预定设计要求,具有实时性、有效性等优点.ECG（ electrocardiogram） is an important basis for medical diagnosis of heart diseases. To obtain practical diagnosed information,this paper introduces the ECG filtering algorithms for power-line interference and electromyography noise and implemented by a digital signal processor. By comparing the collected discrete ECG data and ideal ECG signal,we have designed a digital signal processor to eliminate power-line interference and electromyography noise.Then,we get high-quality ECG signal by using MATLAB simulation technology for comparison and analysis.The experiment results prove that the ECG digital filtering algorithms meet the intended design requirements and have the advantages of real-time performance and effectiveness.

关 键 词：心电信号 工频干扰 肌电干扰 数字滤波 MATLAB 

分 类 号：TN713.7[电子电信—电路与系统]