A portable noncontact heartbeat and respiration monitoring system using 5-GHz radar

Yanming Xiao, Changzhi Li, Jenshan Lin

Research output: Contribution to journalArticle

63 Scopus citations

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 μW. The system can be used for various applications in biology, medicine, and security.

Original languageEnglish
Pages (from-to)1042-1043
Number of pages2
JournalIEEE Sensors Journal
Volume7
Issue number7
DOIs
StatePublished - Jul 7 2007

Keywords

  • Double sideband
  • heartbeat
  • heterodyne
  • indirect-conversion
  • noncontact
  • portable
  • radar
  • remote sensing
  • respiration
  • sensor
  • telemedicine
  • vital sign

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