Noncontact Multiple Heartbeats Detection and Subject Localization Using UWB Impulse Doppler Radar

In this letter, a phase-based algorithm based on a logarithmic method, applicable to UWB radars and suitable to real-time monitoring, is proposed to detect the phase variations of reflected pulses caused by the tiny cardiac motions. Compared with conventional FFT vital signs detection method, this a...

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Bibliographic Details
Published inIEEE microwave and wireless components letters Vol. 25; no. 10; pp. 690 - 692
Main Authors Lingyun Ren, Yun Seo Koo, Haofei Wang, Yazhou Wang, Quanhua Liu, Fathy, Aly E.
Format Journal Article
LanguageEnglish
Published IEEE 01.10.2015
Subjects
Doppler radar
Harmonic analysis
Heart beat
Heart rate detection
Multiple heart rates
phase based algorithm
pulse-doppler radar
Ultra wideband radar
ultrawideband (UWB)
vital signs
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Summary:In this letter, a phase-based algorithm based on a logarithmic method, applicable to UWB radars and suitable to real-time monitoring, is proposed to detect the phase variations of reflected pulses caused by the tiny cardiac motions. Compared with conventional FFT vital signs detection method, this algorithm demonstrates advantage in respiration harmonics suppression and avoidance of intermodulation between respiration and heartbeat signals. Furthermore, it is experimentally shown that UWB Doppler radar is capable of multiple heartbeats detection and subject identification/localization.
ISSN:1531-1309
1558-1764
DOI:10.1109/LMWC.2015.2463214