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Heart Rate Detection During Sleep Using a Flexible RF Resonator and Injection-Locked PLL Sensor

Authors
 Sung Woo Kim  ;  Soo Beom Choi  ;  Yong-Jun An  ;  Byung-Hyun Kim  ;  Deok Won Kim  ;  Jong-Gwan Yook 
Citation
 IEEE Transactions on Biomedical Engineering, Vol.62(11) : 2568-2575, 2015 
Journal Title
 IEEE Transactions on Biomedical Engineering 
ISSN
 0018-9294 
Issue Date
2015
MeSH
Adult ; Clothing* ; Equipment Design ; Female ; Heart Rate/physiology* ; Humans ; Male ; Polysomnography/instrumentation* ; Polysomnography/methods* ; Radio Waves ; Signal Processing, Computer-Assisted ; Wrist/physiology
Abstract
Novel nonintrusive technologies for wrist pulse detection have been developed and proposed as systems for sleep monitoring using three types of radio frequency (RF) sensors. The three types of RF sensors for heart rate measurement on wrist are a flexible RF single resonator, array resonators, and an injection-locked PLL resonator sensor. To verify the performance of the new RF systems, we compared heart rates between presleep time and postsleep onset time. Heart rates of ten subjects were measured using the RF systems during sleep. All three RF devices detected heart rates at 0.2 to 1 mm distance from the skin of the wrist over clothes made of cotton fabric. The wrist pulse signals of a flexible RF single resonator were consistent with the signals obtained by a portable piezoelectric transducer as a reference. Then, we confirmed that the heart rate after sleep onset time significantly decreased compared to before sleep. In conclusion, the RF system can be utilized as a noncontact nonintrusive method for measuring heart rates during sleep.
Full Text
http://ieeexplore.ieee.org/document/7118670/?reload=true
DOI
10.1109/TBME.2015.2439681
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Kim, Deok Won(김덕원)
Kim, Seong Woo(김성우)
Choi, Soo Beom(최수범)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/156709
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