多频穿透式人体探测实验雷达设计与实现  

Design and Realization of Experiment Radar Using Multi-frequency Penetration for Human Body Detection

作　　者：窦兴川 梁凯 

机构地区：[1]海华电子企业(中国)有限公司,广州510656

出　　处：《现代雷达》2012年第9期18-22,共5页Modern Radar

摘　　要：利用微波穿透非金属障碍物的特性可探测到人体的呼吸、心跳以及人体运动信号。为有效降低环境干扰,提高探测性能,文中分析障碍物的衰减特性,提出一种多频连续波发射技术,即采用UHF、L、S 3个波段进行连续波同时发射,信号处理系统根据探测不同障碍物和不同环境条件,对不同人体特征(呼吸、心跳和体动)进行提取与分析。实验结果表明,多频穿透式人体探测方法可有效探测障碍物后的绝对静止人员的呼吸和心跳信号,对运动人体具有更强的探测能力。The human body breathing, heartbeat and movement signal could be detected by the micro-wave＇s characteristic of pen- etration through non-mental obstacles. By analysing the attenuation characteristic of obstacles, a muhi-frequency continuous wave transmit technology is proposed which can effectively reduce environmental interference and improve detection performance. While transmit the continuous wave in UHF,L and S band at the same time, the characteristics （breathing, heartbeat and movement sig- nal） of human bodies by different detection obstacles and environment are extracted and analysed in signal processing system. The experiment result shows that the multi-frequency penetration for human body detection method could effectively detect the breathing and heartbeat signal of an absolutely static person behind the obstacle, the method has a even stronger ability to detect the move- ment of human body.

关 键 词：雷达 蝶形微带天线 人体探测 呼吸和心跳 

分 类 号：TN957.51[电子电信—信号与信息处理]