CW Bio-radar Vital Sign Detector and Experiment Study
10.3969/j.issn.1671-7104.2014.02.006
- VernacularTitle:连续波生物雷达体征检测装置与实验研究
- Author:
Wei HU
1
;
Yunfeng WANG
;
Zhangyan ZHAO
;
Haiying ZHANG
Author Information
1. 中国科学技术大学信息科学技术学院电子科学与技术系
- Keywords:
bio-radar;
vital sign detection;
CW radar;
short-time Fourier transform
- From:
Chinese Journal of Medical Instrumentation
2014;(2):102-106
- CountryChina
- Language:Chinese
-
Abstract:
Non-contact vital sign detection technique provides an effective usage in health monitoring applications. A vital sign detector was designed based on microwave bio-radar technique. Using Doppler principle, continuous wave bio-radar was designed for tiny body movement detection, short-time Fourier transform and interpolation algorithm were adopted for heart and respiration rate extraction, embedded system was used for system integration, real-time signal processing software was designed on it. Experiments were done by using simulation device and human body for research and performance evaluation. The result shows that the proposed prototype can be used for single target vital signs detection at the distance of 90 cm, and the heart rate result shows a 96%recognition rate.
