DocumentCode :
2715775
Title :
Accuracy of A Low-Power Ka-Band Non-Contact Heartbeat Detector Measured from Four Sides of A Human Body
Author :
Xiao, Yanming ; Li, Changzhi ; Lin, Jenshan
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL
fYear :
2006
fDate :
11-16 June 2006
Firstpage :
1576
Lastpage :
1579
Abstract :
A Ka-band heartbeat detector using double-sideband transmission to detect human heartbeat and respiration signals is demonstrated. The short wavelength at Ka-band increases the sensitivity to detect small body motion. The double sideband transmission simplifies the radio transceiver architecture. The detection accuracy was calculated and compared for measurements using two different transmitting power levels, four different body orientations, and at five different distances. It was found that this detector achieved better than 80% detection accuracy for all the above conditions. The measurement results show that the higher power level (350-muAV) can achieve better detection accuracy and longer detection distance than lower power (14.2-muW). The results also show that the detection accuracy measured from the back is the best, which is analyzed and explained using a nonlinear model
Keywords :
cardiology; computerised instrumentation; low-power electronics; medical signal detection; microwave receivers; pneumodynamics; transceivers; Ka-band; cardiopulmonary; detection accuracy; double-sideband transmission; heartbeat detector; motion detection; radio transceivers; respiration signals; telemedicine; Antenna measurements; Band pass filters; Biomedical measurements; Detectors; Frequency; Heart beat; Humans; Power measurement; Receiving antennas; Transmitting antennas; Biomedicine; Ka-band; RF; cardiopulmonary; detector; double sideband; electromagnetic wave; heartbeat; life sign; low-power; microwave; millimeter-wave; non-contact; remote sensing; respiration; sensor; telemedicine; vital sign; wireless;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
ISSN :
0149-645X
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
Type :
conf
DOI :
10.1109/MWSYM.2006.249635
Filename :
4015239
Link To Document :
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