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太赫兹单频雷达的二维成像仿真
引用本文:於建生,张 静,尹治平.太赫兹单频雷达的二维成像仿真[J].太赫兹科学与电子信息学报,2014,12(4):501-504.
作者姓名:於建生  张 静  尹治平
作者单位:Military Delegate Office of Navy in Hefei,Hefei Anhui 230009,China;a.School of Instrument Science and Opto-electronics Engineering;b.Academy of Opto-Electronic Technology,Hefei University of Technology,Hefei Anhui 230009,China;Academy of Opto-Electronic Technology,Hefei University of Technology,Hefei Anhui 230009,China
摘    要:当目标相对雷达存在二维转动时,即使采用单频雷达也可获得目标的二维图像。特别是在目标围绕2根垂直于雷达视线的正交转轴旋转时,成像投影平面垂直于雷达视线,获得视角类似于光学照相机的成像结果。分析了单频雷达二维成像的原理,并利用图形电磁计算软件(GRECO)模拟1.5 THz单频雷达的坦克模型回波,通过二维快速傅里叶变换(FFT)进行二维方位向压缩,获得目标的侧视图像。

关 键 词:单频雷达  二维成像  正交转轴  多普勒频率
收稿时间:2014/4/17 0:00:00
修稿时间:2014/5/29 0:00:00

2-D imaging simulation of THz single frequency radar
YU Jian-sheng,ZHANG Jing and YIN Zhi-ping.2-D imaging simulation of THz single frequency radar[J].Journal of Terahertz Science and Electronic Information Technology,2014,12(4):501-504.
Authors:YU Jian-sheng  ZHANG Jing and YIN Zhi-ping
Affiliation:YU Jian-sheng;ZHANG Jing;YIN Zhi-ping;Military Delegate Office of Navy in Hefei;School of Instrument Science and Opto-electronics Engineering,Hefei University of Technology;Academy of Opto-Electronic Technology,Hefei University of Technology;
Abstract:The 2-D imaging will be realized by using single-frequency radar, when the target executes 2-D rotation relative to the radar. Especially when the target rotates around two orthogonal rotation axes which are both perpendicular to the radar line-of-sight, therefore the projection image plane is perpendicular to the radar line-of-sight, the image whose angle of sight is similar as photographic camera will be obtained. The principle of 2-D imaging using single frequency radar is analyzed. The single frequency THz(at 1.5 THz) radar echo from a tank model is simulated by using GRECO(Graphical Electromagnetic Computing) software. The side view of the model is obtained through 2-D azimuth compression using Fast Fourier Transform(FFT).
Keywords:
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