Microwave doppler radar for heartbeat detection vs electrocardiogram.

This article presents a contact-less system to detect the heartbeat activity from a distance of 1 m. The proposed system is based on using a vector network analyzer. Measurements are performed at 16 GHz for different power levels between 0 and −25 dBm. Results for two S-parameters are obtained and compared to an electrocardiogram simultaneous signal in terms of heartbeat rate and heart rate variability. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:2610-2617, 2012; this online at wileyonlinelibrary.com. DOI 10.1002/mop.27152 [ABSTRACT FROM AUTHOR]