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Journal of Healthcare Engineering
Volume 2018 (2018), Article ID 4832605, 7 pages
Research Article

Detection of Heart Rate through a Wall Using UWB Impulse Radar

Intelligent Devices and Systems Research Group, DGIST, Daegu, Republic of Korea

Correspondence should be addressed to Hui-Sup Cho;

Received 16 May 2017; Revised 1 January 2018; Accepted 1 February 2018; Published 1 April 2018

Academic Editor: Kunal Pal

Copyright © 2018 Hui-Sup Cho and Young-Jin Park. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Measuring the physiological functions of the human body in a noncontact manner through walls is useful for healthcare, security, and surveillance. And radar technology can be used for this purpose. In this paper, a new method for detecting the human heartbeat using ultra wideband (UWB) impulse radar, which has advantages of low power consumption and harmlessness to human body, is proposed. The heart rate is extracted by processing the radar signal in the time domain and then using a principal component analysis of the time series data to indicate the phase variations that are caused by heartbeats. The experimental results show that a highly accurate detection of heart rate is possible with this method.