Influence of motion artifacts on photoplethysmographic signals for measuring pulse rates
Influence of motion artifacts on photoplethysmographic signals for measuring pulse rates
复制标题
运动伪影对测量脉率的光电体积描记信号的影响
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
Jung Kim
中科院分区：
文献类型：
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作者：
Yunjoo Lee;Hyonyoung Han;Jung Kim
在日常生活中进行连续监测的可穿戴医疗传感器中，最重要的问题之一是运动伪影的减少。本文对PPG信号上的运动伪影进行了分析，以找到适合监测心率的位置。实验系统由PPG传感器和数据采集系统组成，用于测量步行等受控身体运动时的心率。利用反射式PPG传感器测量人体额头、耳朵、颈部、手腕、手指和脚趾等多个部位的脉搏率信号，并收集和分析数据，比较运动伪影对信号的影响。通过计算每分钟的心跳次数，并将结果与静止和运动两种状态的结果进行比较，来估计脉搏率。实验结果表明，与其他位置相比，前额的运动伪影较小，是最适合进行监测的位置。这些结果可用于支持脉搏率的测量，以检测临床显著的心跳问题。
One of the most important issues in the wearable healthcare sensors for continuous monitoring in daily life is motion artifact reduction. This paper presents an analysis of motion artifacts on PPG signals to find the suitable location for monitoring heart rates. The experiment system, which consists of PPG sensors and data acquisition system, was built to measure heart rate during controlled body motions such as walking. A reflective type PPG sensor was used to measure the pulse rate signal from several locations of the body including forehead, ear, neck, wrist, finger, and toe, and data were collected and analyzed to compare the effects of motion artifacts on signals. Pulse rates were estimated by counting the number of heartbeats in minute and comparing results with from the two states of stationary and moving conditions. The experiment results showed that forehead is the most suitable location for monitoring because it has less motion artifact than other locations. These results can be used to support the measurement of pulse rates to detect clinically significant heartbeat problems.