| 用三角形检测QRS复合波起止点 |
| |
| 引用本文： | 胡晓,王佳庆,张霓.用三角形检测QRS复合波起止点[J].应用科学学报,2011,29(3):289-293. |
| |
| 作者姓名： | 胡晓 王佳庆 张霓 |
| |
| 作者单位： | 1. 广州大学机械与电气工程学院，广州510006
2. 广东省人民医院广东省心血管病研究所，广州510080 |
| |
| 基金项目： | 广东省科技计划项目基金，广州市科技计划项目基金 |
| |
| 摘 要： | 提出一种简单的QRS复合波起止点的检测方法，以每个采样点及其前后分别隔一个采样点构成一个三角形，计算该采样点对应的三角形夹角和到底边的垂直高度，将满足一定条件的夹角和高度的对应点确定为Q;R或S峰，在QRS复合波前后的一定窗口内，依据夹角的大小检测QRS波群的起止点. 用24组网上提供的多通道ECG信号进行实验，结果表明：该方法能准确检测QRS复合波的起止点，在此基础上去除基线漂移，能有效地保持ST段的形态特征.
|
| 关 键 词： | 心电信号 QRS复合波 形态特征 基线漂移 |
| 收稿时间： | 2010-09-10 |
| 修稿时间： | 2011-01-25 |
Detecting Onset and Offset of QRS Complex Based on Measurement of a Triangle |
| |
| HU Xiao,WANG Jia-qing,ZHANG Ni.Detecting Onset and Offset of QRS Complex Based on Measurement of a Triangle[J].Journal of Applied Sciences,2011,29(3):289-293. |
| |
| Authors: | HU Xiao WANG Jia-qing ZHANG Ni |
| |
| Institution: | 1. School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou 510006, China;
2. Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangzhou 510080, China |
| |
| Abstract: | An algorithm is proposed to detect onset and offset of QRS complex.Given a sequence of ECG signal samples,a triangle is formed by the current sample together with the sample before the previous one,and that after the following one.The interior angle corresponding to the vertex(the current sample),and the distance from the current sample to the opposite side of the triangle are calculated.If both the interior angle and the distance satisfy the pre-determined values,the current sample is judged as a Q,R or S ... |
| |
| Keywords: | electrocardiograph QRS complex morphological feature baseline wander |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《应用科学学报》浏览原始摘要信息 |
| 点击此处可从《应用科学学报》下载免费的PDF全文 |
