Heart rate detection using single-channel Doppler radar system
Heart rate detection using single-channel Doppler radar system
复制标题
使用单通道多普勒雷达系统进行心率检测
DOI：
10.1109/embc48229.2022.9871199
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Boric-Lubecke, Olga
中科院分区：
文献类型：
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作者：
Sameera, Jannatun Noor;Droitcour, Amy D.;Boric-Lubecke, Olga
已经开发了许多算法来利用多普勒雷达系统从生理运动数据中提取心率。然而，如何消除与环境相关的噪声是一个非常具有挑战性的问题，特别是单通道多普勒雷达系统。然而，单通道多普勒雷达提供了在较低功率下操作的优点。此外，使用单通道多普勒雷达的心率提取仍然有些未被探索。这促使我们开发有效的信号处理算法，从单通道多普勒雷达接收到的信号。本文提出并研究了三种心率估计算法。第一种算法基于对FIR滤波信号应用FFT。在第二种算法中，对滤波后的数据进行自相关。第三，我们使用峰值查找算法结合移动平均值，然后使用削波器来确定心率。将获得的结果与脉搏血氧仪的心率读数进行比较。平均差为2.6 bpm，当使用峰值查找算法时，多普勒雷达的心率与脉搏血氧仪的心率最常匹配。使用自相关和峰值查找算法（标准差为2.6 bpm和4.0 bpm）获得的结果表明，单通道多普勒雷达系统可以作为接触式心率监测仪的可行替代方案，用于无法进行接触式测量的患者。
A number of algorithms have been developed to extract heart rate from physiological motion data with the Doppler radar system. Yet, it is very challenging to elimi-nate the noise associated with surroundings, especially with a single-channel Doppler radar system. However, single-channel Doppler radars provide the advantage of operating at lower power. Additionally, the heart rate extraction using single-channel Doppler radar has remained somewhat unexplored. This has motivated us to develop effective signal processing algorithms for signals received from single-channel Doppler radars. In this paper, we have proposed and studied three algorithms for estimating heart rate. The first algorithm is based on applying FFT on an FIR filtered signal. In the second algorithm, autocorrelation was performed on the filtered data. Thirdly, we used a peak finding algorithm in conjunction with a moving average preceded by a clipper to determine the heart rate. The results obtained were compared with the heart rate readings from a pulse oximeter. With a mean difference of 2.6 bpm, the heart rate from Doppler radar matched that from the pulse oximeter most frequently when the peak finding algorithm was used. The results obtained using autocorrelation and peak finding algorithm (with standard deviations of 2.6 bpm and 4.0 bpm) suggest that a single channel Doppler radar system can be a viable alternative to contact heart rate monitors in patients for whom contact measurements are not feasible.
使用小波变换通过体内连续波雷达传感器进行准确心率检测
DOI：
--
发表时间：
2018
期刊：
Italian National Conference on Sensors
影响因子：
--
作者：
M. P. Ebrahim;F. Heydari;Jean;M. Yuce
通讯作者：
M. Yuce