操作员心电信号QRS波检测及分析

Operator ECG QRS Detection and Analysis

人体内蕴藏着十分丰富的生物电信号,心电信号是人体最重要的生理信号之一,是心脏电活动在人体体表的表现,能够较准确的传达出被测者的生理状况。本文通过编程实现了对QRS波群的检测,检测分为两个阶段:第一阶段是对心电信号极值的判断找到R波,由于R波两侧即为Q波和S波,所以第二阶段就是确定QS波。在找到准确的QRS波的基础上,计算了多种基于QRS波的心电特征,分析了QRS波特征与操作员任务难度、疲劳等的相关性。

Human intrinsic contains many types of biological signals. The electroencephalogram (ECG) signal is one of the body's most important physiological signal, which performs as the heart's electrical activity in the human body surface. The ECG can reflect the operator's physiological conditions. The aim of this paper is to detect and analyze the QRS peak of the op-erator's ECG. First, the R peak was detected through program. Then Q and S peak was obtained. After that kinds of features were calculated. Relations between ECG features and operator's task load were analyzed.