A Portable Noncontact Heartbeat and Respiration Monitoring System Using 5-GHz Radar

Author

Xiao, Yanming ; Li, Changzhi ; Lin, Jenshan

Author_Institution

Florida Univ., Gainesville

Volume

7

Issue

7

fYear

2007

fDate

7/1/2007 12:00:00 AM

Firstpage

1042

Lastpage

1043

Abstract

A portable noncontact heartbeat and respiration monitoring system operating in 5-GHz band is reported in this letter. Compared with the previously reported system operating at Ka-band, this system has been simplified to include only two PCB antennas, a palm-size PCB radio module, a data acquisition module, and a laptop. The system, powered by the laptop battery through USB connection, is compact, low-cost, and convenient for field test. A detection accuracy of better than 80% has been achieved at a distance of 2.8 m and at a low transmitted power of 20 muW. The system can be used for various applications in biology, medicine, and security.

Keywords

Doppler radar; biomedical electronics; biomedical telemetry; cardiology; data acquisition; laptop computers; patient monitoring; pneumodynamics; portable instruments; remote sensing by radar; sensors; telemedicine; Doppler radar; PCB antennas; USB connection; data acquisition module; distance 2.8 m; frequency 5 GHz; laptop; low-power radar; palm-size PCB radio module; portable noncontact heartbeat monitoring system; power 20 muW; remote sensing; respiration monitoring system; sensor; telemedicine; Baseband; Data acquisition; Frequency; Gain; Heart beat; Noise figure; Portable computers; Radar detection; System testing; Universal Serial Bus; Double sideband; heartbeat; heterodyne; indirect-conversion; noncontact; portable; radar; remote sensing; respiration; sensor; telemedicine; vital sign;

fLanguage

English

Journal_Title

Sensors Journal, IEEE

Publisher

ieee

ISSN

1530-437X

Type

jour

DOI

10.1109/JSEN.2007.895979

Filename

4200747