TY - JOUR
T1 - Non-contact and real-time measurement of heart rate and heart rate variability using microwave reflectometry
AU - Mase, A.
AU - Kogi, Y.
AU - Maruyama, T.
AU - Tokuzawa, T.
AU - Sakai, F.
AU - Kunugita, M.
AU - Koike, T.
AU - Hasegawa, H.
N1 - Funding Information:
This work was supported by the Grant-in-Aid for Scientific Research, the Ministry of Education, Science, Sports, and Culture, Japan (Grant No. 17K01310), and Adaptable and Seamless Technology Transfer Program through Target-Driven R&D, Japan Science and Technology (Grant No. AS2311355F). It was also performed with the support and under the auspices of the NIFS Collaboration Research Program (Grant Nos. NIFS17KKGP035 and NIFS18KLEP027).
Publisher Copyright:
© 2020 Author(s).
PY - 2020/1/1
Y1 - 2020/1/1
N2 - In this paper, we present noncontact and noninvasive vital signal detection using a microwave reflectometer. Elimination of noise components due to random movement of human subjects has been the biggest issue for microwave measurement. Appropriate filtering, amplitude control of the reflectometer signal, and cross correlation among multiple reflectometers together with new algorithms have enabled motion artifact elimination, signal peak detection, and data processing for various parameters related to heart rate (HR) and heart rate variability (HRV). We focus here on the real time measurements of instantaneous HR and HRV for practical use. The evaluation by microwave reflectometry is completely noninvasive and feasible even through clothing, which is extremely effective for health maintenance in daily life as well as for preventing sudden death related to, for example, coronary heart disease and ventricular arrhythmia.
AB - In this paper, we present noncontact and noninvasive vital signal detection using a microwave reflectometer. Elimination of noise components due to random movement of human subjects has been the biggest issue for microwave measurement. Appropriate filtering, amplitude control of the reflectometer signal, and cross correlation among multiple reflectometers together with new algorithms have enabled motion artifact elimination, signal peak detection, and data processing for various parameters related to heart rate (HR) and heart rate variability (HRV). We focus here on the real time measurements of instantaneous HR and HRV for practical use. The evaluation by microwave reflectometry is completely noninvasive and feasible even through clothing, which is extremely effective for health maintenance in daily life as well as for preventing sudden death related to, for example, coronary heart disease and ventricular arrhythmia.
UR - http://www.scopus.com/inward/record.url?scp=85078294670&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85078294670&partnerID=8YFLogxK
U2 - 10.1063/1.5128959
DO - 10.1063/1.5128959
M3 - Article
C2 - 32012645
AN - SCOPUS:85078294670
SN - 0034-6748
VL - 91
JO - Review of Scientific Instruments
JF - Review of Scientific Instruments
IS - 1
M1 - 014704
ER -
