Investigation of carrier frequency effect on detection performance of Doppler sensor systems for noncontact human vital-signs sensing

Hsin Chih Kuo, Huey-Ru Chuang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Microwave/millimeter-wave Doppler sensor systems with various operating frequency for noncontact human vital-signs sensing have been reported extensively. To investigate the frequency effect on the detection performance of the vital signs, the muscle sphere is used to emulate the human heart organ to compute the scattering field of the incident wave radiated from the Doppler sensor and calculate the radar cross section (RCS) of different frequency. A pig heart is used in the experimental measurement to measure the RCS and compare with the computed value of the spherical muscle sphere at 60 GHz. The receiving power of the Doppler sensor can then be calculated from the radar equation at different frequency. From the theoretical upper bound value of the antenna gain (under the fixed antenna size), by observing the simulated receiving-power comparison, it is found that the Doppler sensor can receive more reflected power (from the spherical muscle sphere) for the higher carrier frequency (up to 60 GHz) which may have a better vital-signs sensing performance. Measured vital signs of a 60-GHz Doppler sensor system of a human subject 2-m away are also demonstrated.

Original languageEnglish
Title of host publication8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Conference 2014
PublisherIEEE Computer Society
ISBN (Print)9781479948567
DOIs
Publication statusPublished - 2014 Jan 1
Event8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Florence, Italy
Duration: 2014 Apr 22014 Apr 4

Publication series

NameInternational Symposium on Medical Information and Communication Technology, ISMICT
ISSN (Print)2326-828X
ISSN (Electronic)2326-8301

Other

Other8th International Symposium on Medical Information and Communication Technology, ISMICT 2014
CountryItaly
CityFlorence
Period14-04-0214-04-04

Fingerprint

Vital Signs
Radar
Sensors
Muscle
Radar cross section
Muscles
Antennas
Microwaves
Swine
Millimeter waves
Scattering

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Information Systems
  • Health Informatics
  • Health Information Management

Cite this

Kuo, H. C., & Chuang, H-R. (2014). Investigation of carrier frequency effect on detection performance of Doppler sensor systems for noncontact human vital-signs sensing. In 8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Conference 2014 [6825209] (International Symposium on Medical Information and Communication Technology, ISMICT). IEEE Computer Society. https://doi.org/10.1109/ISMICT.2014.6825209
Kuo, Hsin Chih ; Chuang, Huey-Ru. / Investigation of carrier frequency effect on detection performance of Doppler sensor systems for noncontact human vital-signs sensing. 8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Conference 2014. IEEE Computer Society, 2014. (International Symposium on Medical Information and Communication Technology, ISMICT).
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abstract = "Microwave/millimeter-wave Doppler sensor systems with various operating frequency for noncontact human vital-signs sensing have been reported extensively. To investigate the frequency effect on the detection performance of the vital signs, the muscle sphere is used to emulate the human heart organ to compute the scattering field of the incident wave radiated from the Doppler sensor and calculate the radar cross section (RCS) of different frequency. A pig heart is used in the experimental measurement to measure the RCS and compare with the computed value of the spherical muscle sphere at 60 GHz. The receiving power of the Doppler sensor can then be calculated from the radar equation at different frequency. From the theoretical upper bound value of the antenna gain (under the fixed antenna size), by observing the simulated receiving-power comparison, it is found that the Doppler sensor can receive more reflected power (from the spherical muscle sphere) for the higher carrier frequency (up to 60 GHz) which may have a better vital-signs sensing performance. Measured vital signs of a 60-GHz Doppler sensor system of a human subject 2-m away are also demonstrated.",
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Kuo, HC & Chuang, H-R 2014, Investigation of carrier frequency effect on detection performance of Doppler sensor systems for noncontact human vital-signs sensing. in 8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Conference 2014., 6825209, International Symposium on Medical Information and Communication Technology, ISMICT, IEEE Computer Society, 8th International Symposium on Medical Information and Communication Technology, ISMICT 2014, Florence, Italy, 14-04-02. https://doi.org/10.1109/ISMICT.2014.6825209

Investigation of carrier frequency effect on detection performance of Doppler sensor systems for noncontact human vital-signs sensing. / Kuo, Hsin Chih; Chuang, Huey-Ru.

8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Conference 2014. IEEE Computer Society, 2014. 6825209 (International Symposium on Medical Information and Communication Technology, ISMICT).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Kuo HC, Chuang H-R. Investigation of carrier frequency effect on detection performance of Doppler sensor systems for noncontact human vital-signs sensing. In 8th International Symposium on Medical Information and Communication Technology, ISMICT 2014 - Conference 2014. IEEE Computer Society. 2014. 6825209. (International Symposium on Medical Information and Communication Technology, ISMICT). https://doi.org/10.1109/ISMICT.2014.6825209