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

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3 Author(s)
Yanming Xiao ; Florida Univ., Gainesville ; Changzhi Li ; Jenshan Lin

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.

Published in:

IEEE Sensors Journal  (Volume:7 ,  Issue: 7 )