Journal of electromagnetic engineering and science

  • 제10권4호
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  • Pages.250-255
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  • 2010
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Detection of Human Vital Signs and Estimation of Direction of Arrival Using Multiple Doppler Radars

  • An, Yong-Jun (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Jang, Byung-Jun (Department of Electronics Engineering, Kookmin University) ;
  • Yook, Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University)
  • 투고 : 2010.10.01
  • 발행 : 2010.12.31
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초록

This paper presents a non-contact measurement method of vital signal by the use of multiple-input multiple-output (MIMO) bio-radar system, configured with two antennas that are separated by a certain distance. The direction of arrival (DOA) estimation algorithm for coherent sources was applied to detect vital signals coming from different spatial angles. The proposed MIMO bio-radar system was composed of two identical transceivers sharing single VCO with a PLL. In order to verify the performance of the system, the DOA estimation experiment was completed with respect to the human target at angles varying between $-50^{\circ}$ and $50^{\circ}$ where the bio-radar system was placed at distances (corresponding to 50 cm and 95 cm) in front of a human target. The proposed MIMO bio-radar system can successfully find the direction of a human target.

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참고문헌

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  2. Heart Rate Detection During Sleep Using a Flexible RF Resonator and Injection-Locked PLL Sensor vol.62, pp.11, 2015, https://doi.org/10.1109/TBME.2015.2439681
  3. Estimating Living-Body Location Using Bistatic MIMO Radar in Multi-Path Environment vol.E98.B, pp.11, 2015, https://doi.org/10.1587/transcom.E98.B.2314
  4. RF sensor for smart home application 2018, https://doi.org/10.1007/s13198-016-0468-5
  5. RSSI-Based Living-Body Radar Using Single RF Front-End and Tunable Parasitic Antennas vol.E101.B, pp.2, 2018, https://doi.org/10.1587/transcom.2017ISP0022