摘要
心电图(ECG)分析对心血管疾病的诊断是十分重要的。但所测得的心电信号经常受到各种干扰的影响,其中由电源引起的工频干扰影响最大。本文应用非线性方程组的最小二乘解法估计工频干扰,从而将其从心电信号中消除。与CramerE提出的最小二乘估计方法相比,本方法的计算公式更为通用,所需的已知条件较少且无须进行估计前的预处理工作。
Analysis of electrocardiogram(ECG)is important to cardiovascular diagnosis.But ECG signal detected is faced with many interferences.Power line interference is most harmful.This paper presents a least square method of soving non-linear equation set in estimating and removing it from ECG signal.Compared with Least Square Estimation method presented by Cramer E,the formula of this method is more versatile,demands lessknown conditions and does not have to do pre-processing work.
作者
戴虹
曹柏荣
周政新
Dai Hong;Cao Bairong;Zhou Zhengxin(School of Electronic and Electrical Engineering,Shanghai Second Polytechnic University)
出处
《微计算机信息》
北大核心
2005年第09X期14-15,53,共3页
Control & Automation
基金
上海市教委基金.项目编号:DZ102002
关键词
心电信号
工频干扰
最小二乘估计
ECG signal
power line interference
Least Square Estimation.
