| 基于全息技术的近程目标毫米波散射特性研究 |
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| 引用本文： | 朱莉,李兴国,王本庆.基于全息技术的近程目标毫米波散射特性研究[J].宇航学报,2011,32(11):2457-2462. |
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| 作者姓名： | 朱莉 李兴国 王本庆 |
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| 作者单位： | （南京理工大学电光学院探测与控制工程系，南京 210094） |
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| 基金项目： | 国家自然科学基金资助（61001010） |
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| 摘 要： | 针对近程条件下由于目标各散射点回波的干涉而产生“角闪烁”效应的问题，首次提出采用全息技术研究近程目标的毫米波散射特性。该方法利用相位干涉效应，补偿电磁波的波前球面弯曲，并通过对回波信号的数学建模，反演目标的散射场分布函数。给出了四类不同特征的目标进行近程RCS预测，预测结果与目标特性相一致，表明该方法切实有效。
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| 关 键 词： | 毫米波 散射特性 近程探测 全息技术 |
| 收稿时间： | 2010-10-13 |
Research on Short\|Range Target Millimeter Wave Scattering Characteristics Based Holographic Technique |
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| ZHU Li,LI Xingguo,WANG Benqing.Research on Short\|Range Target Millimeter Wave Scattering Characteristics Based Holographic Technique[J].Journal of Astronautics,2011,32(11):2457-2462. |
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| Authors: | ZHU Li LI Xingguo WANG Benqing |
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| Affiliation: | (Detection and Control Engineering Department of Institute of Electro\|Optical, Nanjing University of Science and Technology, Nanjing 210094, China) |
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| Abstract: | For the “glint” effect caused by interference of target scatters echo under the near\|range condition, a holographic technique is introduced to study near\|range target millimeter wave scattering characteristics. Phase interference effect is used to compensate the spherical wave front of electromagnetic wave. The mathematical model about near\|range target scattering signal is established, and distributed function of target scattering field is inversed. Near\|range RCS of four different characteristic targets are predicted. The experimental results are in consistent with the target characteristics, and the method is proved to be effective. |
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| Keywords: | Millimeter wave Scattering characteristics HoloGraphic technique Near-range detection |
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