Title :
Real-time remote vital sign detection using a portable Doppler sensor system
Author :
Wei Hu ; Haiying Zhang ; Zhangyan Zhao ; Yunfeng Wang ; Xize Wang
Author_Institution :
Dept. of Electron. Sci. & Technol., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
A portable sensor system with signal processing techniques was developed in this paper, aiming to provide remote monitoring of vital signs of human subject. The designed sensor based on microwave Doppler radar enables accurate reconstruction of subject´s motion caused by cardiopulmonary activities and other movement in the antenna´s field of view. The developed algorithm enables real-time estimation of respiration, heart rate in real world conditions. The sensor system was designed to be a compact detector which can be integrated into portable device for personal healthcare applications. The described sensor system was successfully tested on both simulated target and human subject. The working range was from 3 cm to 250 cm, the mean square error of extracted heart rate is 0.46 compared with ECG results.
Keywords :
Doppler radar; biomedical equipment; cardiology; gait analysis; health care; least mean squares methods; medical signal detection; microwave antennas; patient monitoring; portable instruments; radar antennas; radar signal processing; signal reconstruction; antenna field of view; cardiopulmonary activity monitoring; compact detector; heart rate extraction; mean square error method; microwave Doppler radar; motion reconstruction; personal healthcare applications; portable Doppler sensor system; remote monitoring; remote vital sign detection; respiration estimation; signal processing techniques; Baseband; Doppler radar; Heart beat; Receivers; Sensor systems; Doppler; noncontact; remote sensing; vital sign;
Conference_Titel :
Sensors Applications Symposium (SAS), 2014 IEEE
Conference_Location :
Queenstown
Print_ISBN :
978-1-4799-2180-5
DOI :
10.1109/SAS.2014.6798923
