| 发射天线对毫米波全息成像雷达成像质量影响 |
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| 引用本文： | 曹振新,窦文斌,苏宏艳.发射天线对毫米波全息成像雷达成像质量影响[J].电波科学学报,2011(4):693-698. |
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| 作者姓名： | 曹振新 窦文斌 苏宏艳 |
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| 作者单位： | 东南大学毫米波国家重点实验室;毫米波系统技术研究重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(No.60970058); 江苏省自然科学基金资助项目(No.SBK200930425); 毫米波国家重点实验室资助项目; 毫米波系统技术研究重点实验室开放课题资助项目 |
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| 摘 要： | 基于菲涅耳(Fresnel)衍射理论和傅里叶(Fourier)光学理论建立了毫米波全息成像雷达理论模型,其中重点考虑发射天线波束宽度对成像质量的影响。采用矩阵实验室软件平台(Matlab)编制了仿真程序,分别考虑超窄波束、一般波束和超宽波束三种条件下的系统成像效果。仿真结果表明:适当地优化发射天线性能,有助于获得质量更佳的全息成像。
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| 关 键 词： | 天线方向图 毫米波 全息成像 |
Effect of the transmission antenna radiation pattern on the imaging quality of the MMW holographic imaging radar |
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| CAO Zhen-xin DOU Wen-bin SU Hong-yan.Effect of the transmission antenna radiation pattern on the imaging quality of the MMW holographic imaging radar[J].Chinese Journal of Radio Science,2011(4):693-698. |
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| Authors: | CAO Zhen-xin DOU Wen-bin SU Hong-yan |
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| Institution: | CAO Zhen-xin1 DOU Wen-bin1 SU Hong-yan2(1.State Key Laboratory of Millimeter Waves,Southeast University,Nanjing Jianhsu 210096,China,2.National Key Laboratory of Millimeter Wave System,Beijing 100039,China) |
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| Abstract: | A MMW holographic imaging radar model is created based on both Fresnel diffraction theory and Fourier optics theory,in which the effect of the transmission antenna radiation pattern on the imaging quality of the system is paid more attention.Furthermore,a Matlab simulation program is designed to analyze the effects under super narrow beam,general beam and super wide beam,which shows that the system can generate a better holographic image if choosing a transmission antenna with appropriate beam width. |
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| Keywords: | antenna radiation beam MMW holographic imaging |
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