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KMID : 1137820170380050264
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의공학회지
2017 Volume.38 No. 5 p.264 ~ p.270
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A Study on Measurement of Heartrate and Respiration during Sleep using Doppler Radar: Preliminary Study
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Lim Yong-Gyu
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Abstract
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A Doppler radar sensor was applied to detect respirations and heartbeats of persons who were lying on a bed. This study is preliminary study aiming at non-contact and non-intrusive respiration and heart rate monitoring during sleep in daily life. For the experiments, 10GHz Doppler radar with patch-type antenna was used and installed on the upper right and the distance between the body and the antenna was 1 m. The results show that each signal of respiration and heartbeat is observed in each frequency band however the frequency band and the waveform vary according to the subjects and the posture. The results show that the heartbeats can be detected with the peak detection in some frequency band. This study shows the feasibility of applying the Doppler radar to detection of heartbeat and respiration during sleep and further studies about heartbeat detection algorithm are required.
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KEYWORD
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Heartbeat detection , Doppler radar , Sleep monitoring , Non-intrusive measurement
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