29 April 2009 Millimeter-wave radar for vital signs sensing
Author Affiliations +
Abstract
In this paper, we will describe the development of a 228 GHz heterodyne radar system as a vital signs sensing monitor that can remotely measure respiration and heart rates from distances of 1 to 50 meters. We will discuss the design of the radar system along with several studies of its performance. The system includes the 228 GHz transmitter and heterodyne receiver that are optically coupled to the same 6 inch optical mirror that is used to illuminate the subject under study. Intermediate Frequency (IF) signal processing allows the system to track the phase of the reflected signal through I and Q detection and phase unwrapping. The system monitors the displacement in real time, allowing various studies of its performance to be made. We will review its successes by comparing the measured rates with a wireless health monitor and also describe the challenges of the system.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Douglas T. Petkie, Carla Benton, Erik Bryan, "Millimeter-wave radar for vital signs sensing", Proc. SPIE 7308, Radar Sensor Technology XIII, 73080A (29 April 2009); doi: 10.1117/12.818927; https://doi.org/10.1117/12.818927
PROCEEDINGS
5 PAGES


SHARE
RELATED CONTENT

Application of step-frequency radars in medicine
Proceedings of SPIE (May 29 2014)
Millimeter-wave radar systems for biometric applications
Proceedings of SPIE (September 17 2009)
Imaging terahertz radar for security applications
Proceedings of SPIE (April 15 2008)
Wireless remote monitoring system for sleep apnea
Proceedings of SPIE (April 13 2011)
Radar design and management in a networked environment
Proceedings of SPIE (July 26 2001)
A beamforming algorithm for bistatic SAR image formation
Proceedings of SPIE (April 18 2010)

Back to Top