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Signal Analysis of Through-the-Wall Surveillance
Author(s): 
Pages: 594-598
Year: Issue:  5
Journal: JOURNAL OF NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Keyword:  穿墙生命探测信号回波简谐振动连续波;
Abstract: 穿墙生命探测(TWS)是研究障碍物后有无生命现象的一种探测技术.该文主要研究基于连续波体制的TWS探测器回波信号.推导了这种探测器的回波信号表达式,根据生命体征特点,采用简谐振动模型,利用贝塞尔函数对回波信号展开分析并进行了实验验证.实测信号和仿真信号的比较结果表明二者吻合良好.详细分析了穿墙前后TWS探测器回波变化特征,指出穿墙后信号处理的重点是对呼吸信号的检测.
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