| 用频域方法实时计算运动中的脉搏数 |
| |
| 引用本文： | 吴剑,汤捷,王广志,郭忠武,丁海曙.用频域方法实时计算运动中的脉搏数[J].清华大学学报(自然科学版),2002,42(3):321-324. |
| |
| 作者姓名： | 吴剑 汤捷 王广志 郭忠武 丁海曙 |
| |
| 作者单位： | 清华大学,电机工程与应用电子技术系,北京,100084 |
| |
| 摘 要： | 为准确实时地检测出运动过程中人体的心率值 ,改进传统的心率计算方法是非常必要的。文中介绍了基于频域计算的离散 Fourier变换 (DFT)算法——改进的戈泽尔算法 ,实现了时域信号的频域分析。它克服了运动过程中所带进的干扰、减少了必须用于 DFT算法计算所需的脉搏包络的数据长度和 DFT所需的时间。文中还介绍了使用近红外光传感器检测脉搏波的方法 ,以及算法在 8bit的 EPSON单片机上的实现 ,并研制出了原型样机用于实际的检测。结果表明系统在实时脉搏检测上得到了比传统脉搏检测方法更好的效果
|
| 关 键 词： | 心率 戈泽尔算法 离散傅立叶变换 近红外光 |
| 文章编号： | 1000-0054(2002)03-0321-04 |
| 修稿时间： | 2000年11月2日 |
Monitoring of the heart-rate of moving body in real time using a frequency-based method |
| |
| WU Jian,TANG Jie,WANG Guangzhi,GUO Zhongwu,DING Haishu.Monitoring of the heart-rate of moving body in real time using a frequency-based method[J].Journal of Tsinghua University(Science and Technology),2002,42(3):321-324. |
| |
| Authors: | WU Jian TANG Jie WANG Guangzhi GUO Zhongwu DING Haishu |
| |
| Abstract: | The traditional pulse detection method must be improved to detect the heart rate of a moving body in real time. A frequency based discrete Fourier transforms (DFT) algorithm, an improved Gerzel algorithm, is introduced to analyze the signals in the frequency domain. The method can overcome disturbances and decrease the length of the pulse packet that must be given to the DFT algorithm which reduces the calculation time. The pulse wave can be detected using a near infrared sensor and analyzed using by an 8 bit EPSON microprocessor. The system has been used to detect the heart rate at a moving body in real time with better results than traditional methods. |
| |
| Keywords: | heart rate gerzel algorithm DFT near infrared |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
