便携式FMCW雷达动目标探测设计  

Design of portable FMCW radar in a moving target detection

作　　者：胡继志 张丕状[1] 杨大鹏 Hu Jizhi;Zhang Pizhuang;Yang Dapeng(Key Laboratory of Information Capturing and Processing in Shanxi Province,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学信息与探测与处理山西省重点实验室,太原030051

出　　处：《国外电子测量技术》2020年第12期90-94,共5页Foreign Electronic Measurement Technology

摘　　要：在目标探测领域,雷达系统表现出轻质、微型、低成本的发展趋势,然而,在实际的复杂环境探测中,由于地形或障碍物等因素,为了保证精度,常采用多个收发天线的形式,此时系统往往显得体积过大,操作繁琐。采用系统大小为半径20 mm,高度约40 mm的微型调频连续波(FMCW)雷达作为信号源,空芯金属管作为传输路径,测量目标的运动状态。实验结果表明,使用波导测试时的信号相比于直接穿过障碍物测量的信号信噪比更高,并且波导含有曲率变化时,依然可以探测到目标的运动状态。Radar system shows the trend of lightweight,miniaturization and low cost in the field of target detection.However,in the actual complex environment detection,due to the terrain or obstacles and other factors,in order to ensure the accuracy,the form of multiple transmit and receive antennas is adopted.At this time,the system often appears to be too large and the operation is cumbersome.In this paper,the FMCW radar with a radius of 20 mm is used as the signal source and the hollow metal tube as the transmission path to measure the moving state of the target.The experimental results show that the SNR of the signal measured by using the waveguide is higher than that measured directly through the obstacle,and the moving state of the target can still be detected when the waveguide contains curvature change.

关 键 词：FMCW雷达 运动目标探测 波导传输 

分 类 号：TN2[电子电信—物理电子学]