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

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

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...

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Veröffentlicht in:IEEE sensors journal 2007-07, Vol.7 (7), p.1042-1043
Hauptverfasser: Xiao, Yanming, Li, Changzhi, Lin, Jenshan
Format: Artikel
Sprache:eng
Schlagworte:
Baseband
Battery
Circuit boards
Data acquisition
Double sideband
Frequency
Gain
Heart beat
heartbeat
heterodyne
indirect-conversion
Laptop
Modules
Monitoring
Noise figure
noncontact
Portability
portable
Portable computers
Printed circuits
radar
Radar detection
remote sensing
Respiration
sensor
System testing
telemedicine
Universal Serial Bus
vital sign
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Beschreibung
Zusammenfassung: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.
ISSN:1530-437X
1558-1748
DOI:10.1109/JSEN.2007.895979