Singh Aditya, Lubecke Victor
Electrical Engineering Department of University of Hawaii at Manoa, USA.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:1445-8. doi: 10.1109/IEMBS.2010.5626699.
A harmonic radar employing the use of harmonic passive RF tags can be successfully used to isolate the human respiration from environmental clutter. This paper describes the successful use of heterodyne receiver architecture with Doppler radar to track the heart-rate of a human being using passive body-worn harmonic tags in presence of a controlled noise generator at distances up to 120 cm. The heterodyne system results have been compared with those of a conventional Doppler radar for cardiopulmonary monitoring that fails to isolate the noise from heart-rate in presence of a noise source.
一种采用谐波无源射频标签的谐波雷达能够成功地将人体呼吸与环境杂波隔离开来。本文描述了外差式接收器架构与多普勒雷达的成功结合，该结合利用佩戴在人体上的无源谐波标签，在距离高达120厘米且存在可控噪声发生器的情况下追踪人体心率。已将外差式系统的结果与传统多普勒雷达用于心肺监测的结果进行了比较，传统多普勒雷达在存在噪声源的情况下无法将噪声与心率隔离开来。
