[1]曹振新,窦文斌,苏宏艳.发射天线固定的点频毫米波全息成像雷达系统[J].东南大学学报(自然科学版),2011,41(4):678-681.[doi:10.3969/j.issn.1001-0505.2011.04.004]
 Cao Zhenxin,Dou Wenbin,Su Hongyan.Millimeter wave holographic imaging radar system using single irradiator at center of scan aperture[J].Journal of Southeast University (Natural Science Edition),2011,41(4):678-681.[doi:10.3969/j.issn.1001-0505.2011.04.004]
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发射天线固定的点频毫米波全息成像雷达系统()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第4期
页码:
678-681
栏目:
图像处理
出版日期:
2011-07-20

文章信息/Info

Title:
Millimeter wave holographic imaging radar system using single irradiator at center of scan aperture
作者:
曹振新1窦文斌1苏宏艳2
(1东南大学毫米波国家重点实验室,南京210096)
(2毫米波系统技术研究重点实验室,北京100039)
Author(s):
Cao Zhenxin1Dou Wenbin1Su Hongyan2
(1State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China)
(2National Key Laboratory of Millimeter Wave System, Beijing 100039, China)
关键词:
毫米波全息成像雷达远距离
Keywords:
millimeter wave holographic imaging radar long distance
分类号:
TP751
DOI:
10.3969/j.issn.1001-0505.2011.04.004
摘要:
基于Fresnel衍射理论分别对固定发射天线的点频毫米波全息成像雷达系统和PNNL设计的移动收发天线的点频毫米波全息成像系统建立了数学模型,确定了目标反演成像质量与发射天线增益方向图、传输空间距离、散射目标形状和接收天线增益方向图之间的关系.同时基于Fourier光学角谱理论和快速傅里叶变换算法,采用Matlab程序编制了仿真系统.采用该仿真系统比较了2种系统在不同距离下的成像效果.结果表明,该仿真系统无论在用于近距离的反恐成像还是用于远距离的目标侦测中具有良好的成像效果,同时还具有简单的系统结构,该工作为实际设计系统提供了便利.
Abstract:
Mathematic models of the MMW(millimeter ware) holographic imaging radar system respectively using single irradiator at the center of a scan aperture and moving irradiator designed by the PNNL(pacific northwest national laboratory) are created based on the Fresnel diffraction theory. In the models, the relationship between reconstruction imaging quality and transmitting antenna radiation pattern, transmitting distance, target shape and receiving antenna radiation pattern has got described in detail. Meanwhile based on the Fourier optics angle spectrum theory and fast Fourier transform (FFT) algorithm the corresponding simulation programs using Matlab platform, are presented for simulating holographic imaging about both systems. Results show that the system proposed in this paper has a better imaging quality than the one designed by the PNNL not only for the near field safety detection but also for the far field object reconnaissance. Moreover, it has a simpler structure. The model and simulation program provide an assistance for deigning the radar system in practice.

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备注/Memo

备注/Memo:
作者简介:曹振新(1976—),男,博士,副教授,caozx@seu.edu.cn.
基金项目:国家自然科学基金资助项目(60970058)、江苏省自然科学基金资助项目(SBK200930425)、毫米波国家重点实验室资助项目(Z201002)、毫米波系统技术研究重点实验室资助项目(6904001143).
引文格式: 曹振新,窦文斌,苏宏艳.发射天线固定的点频毫米波全息成像雷达系统[J].东南大学学报:自然科学版,2011,41(4):678-681.[doi:10.3969/j.issn.1001-0505.2011.04.004]
更新日期/Last Update: 2011-07-20