基于小波变换的非接触心跳信号提取

2015 8th International Conference on Biomedical Engineering and Informatics (BMEI) Pub Date : 2015-10-01 DOI:10.1109/BMEI.2015.7401502

Mi He, Yongjian Nian, Bin Liu

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引用次数: 22

摘要

利用连续波多普勒雷达进行非接触式生命体征监测是一种很有发展前途的技术。提出了一种改进的基于小波变换的非接触式雷达生命信号提取方法。在不同距离下，该方法对心率的检测精度均高于带通滤波和经验模态分解(EMD)方法(均p<;0.05)和带通滤波方法。检测精度和信噪比与距离成反比。男性被试在前箱和女性被试在后箱获得的定位精度高于其他取向。

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Noncontact heart beat signal extraction based on wavelet transform

Noncontact monitoring of vital signs by continuous wave Doppler radar is a promising technique in the field of health care. This paper proposed an improved heart beat signal extraction method based on wavelet transform for noncontact radar vital signal monitoring. The detection accuracy of heart beat rate by the proposed method was higher than bandpass filtering and empirical mode decomposition (EMD) method (all p<;0.05) and the bandpass filtering method at different distances. Detection accuracy and signal to noise ratio varied inversely to distance. Male subjects in front case and female subjects in back case acquired higher accuracy than other orientations.

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2015 8th International Conference on Biomedical Engineering and Informatics (BMEI)

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