Kim Hyoung Jong, Kim Ki Ho, Hong Yun Seok, Choi Jin Joo
Department of Wireless Communications Engineering, Kwangwoon University, 447-1, Wolgye-Dong, Nowon-Gu, Seoul 139-701, Korea.
Rev Sci Instrum. 2007 Oct;78(10):104703. doi: 10.1063/1.2798937.
This article introduces a low-cost phase detection radar aimed at measuring the human heartbeat and respiration signals without any physical connections to the human body. A continuous-wave radar targeting the chest will detect the phase difference, resulted by the time-varying target position of the heartbeat, between the transmitted signal and the reflected signal. We have tested the developed radar to measure the heartbeat and respiration signals at a distance of about 40 cm from the chest.
本文介绍了一种低成本的相位检测雷达，旨在无需与人体进行任何物理连接即可测量人体心跳和呼吸信号。针对胸部的连续波雷达将检测由于心跳引起的目标位置随时间变化而在发射信号和反射信号之间产生的相位差。我们已经对开发的雷达进行了测试，以测量在距离胸部约40厘米处的心跳和呼吸信号。
