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基于FDTD方法的雷达近场成像模拟
Alternative TitleNear2f ield Radar Imaging Simulation Based on FDTD Method
顾翔; 张云华; 张祥坤; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication微波学报
2008
Volume24Issue:1Pages:1-6
ISSN1005-6122
Language中文
Keyword雷达近场成像 时域有限差分法 时域相干法 后向投影法 相移偏移法
Abstract运用二维时域有限差分法(2D-FDTD)建立点目标雷达近场成像的全电磁场模拟模型.可以任意设定收发天线(阵)以及目标的位置,对2D点目标双/多站雷达成像进行了模拟.将在合成孔径雷达(SAR)成像算法中得到广泛应用的时域相干法(TDC),后向投影法(BP)以及地震信号处理中的相移偏移法(PSM)应用于近场成像.对这几种成像算法进行了近场成像,对成像质量及计算量进行了比较和分析.成像结果表明,BP算法和PSM算法用于近场成像时效果是不同的,文中对效果不同的原因进行了分析.
Other AbstractA full-wave electromagnetic model of near-field radar imaging of the point targests is simulated using 22D finite difference time domain ( FDTD) method for bistatic and multistatic radar systems.Three imaging algorithms usually used in SAR imaging and seismic p rocessing,i.e.time domain correlation(TDC) ,back-projection (BP),and phase-shift migration ( PSM),are app lied to p rocessing the near-field data.Imaging quality and processing time of these methods are compared. The results showed that BP and PSM have different performance in near-field imaging, and the reason is analyzed.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1924
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
顾翔,张云华,张祥坤,等. 基于FDTD方法的雷达近场成像模拟[J]. 微波学报,2008,24(1):1-6.
APA 顾翔,张云华,张祥坤,&北京8701信箱.(2008).基于FDTD方法的雷达近场成像模拟.微波学报,24(1),1-6.
MLA 顾翔,et al."基于FDTD方法的雷达近场成像模拟".微波学报 24.1(2008):1-6.
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