一款轻小型化微功率微多普勒超宽带雷达探测系统的设计与实现  

Design and implementation of miniaturized lightweight micro⁃power micro⁃Doppler UWB radar detection system

作　　者：孙浩 谢义方 马淑香 SUN Hao;XIE Yifang;MA Shuxiang(National Space Science Center,CAS,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院国家空间科学中心,北京100190 [2]中国科学院大学,北京100049

出　　处：《现代电子技术》2021年第5期16-20,共5页Modern Electronics Technique

摘　　要：针对日益扩大的微动感知技术需求,基于Xethru公司的X2芯片设计了一款超宽带雷达原理系统,可实现对人体微动信息的探测和分析功能。系统包括雷达硬件以及数据接收与处理软件。硬件电路板尺寸为45 mm×45 mm,质量小于10 g。实验测试结果表明,该雷达系统功耗小于450 mW,距离分辨率达到毫米级,能够非接触式准确测量4 m内因呼吸而引起的人体微动信息。In order to meet the increasing demands of micro⁃motion detection technology,an ultra wide band(UWB)radar principle system based on Xethru′s X2 chip is designed and implemented to detect and analyze human micro⁃motion information.This system is composed of radar hardware and data receiving&processing software.The size of the circuit board for the hardware is 45 mm×45 mm and its weight is less than 10 g.Experimental results show that the power dissipation of the radar system is less than 450 mW and the level of its range resolution is up to millimeter,so the system can accurately detect the body′s micro⁃motion information produced by breathing within 4 m under non⁃contact condition.

关 键 词：系统设计 超宽带雷达 探测系统 数据处理 微动信息测量 嵌入式系统 

分 类 号：TN957.52-34[电子电信—信号与信息处理] TH843[电子电信—信息与通信工程]