| 引用本文: | 李永祯,王雪松,徐振海,等.一种新的高分辨极化目标检测方法.[J].国防科技大学学报,2000,22(6):65-69.[点击复制] |
| LI Yongzhen,WANG Xuesong,XU Zhenhai,et al.A New Method of High-resolution Polarization Target Detection[J].Journal of National University of Defense Technology,2000,22(6):65-69[点击复制] |
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| 一种新的高分辨极化目标检测方法 |
| 李永祯, 王雪松, 徐振海, 肖顺平, 庄钊文 |
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(国防科技大学 电子科学与工程学院,湖南 长沙 410073)
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| 摘要: |
| 针对宽带毫米波高分辨雷达体制, 研究了杂波环境中的目标检测问题。提出了极化域线性积累滤波的思路以提高雷达接收信号的信杂比，在此基础上利用宽带波形固有的径向高分辨力对目标进行一维距离成像，估计出回波中强散射点的数量和分布，通过对不同径向分辨单元内的强散射点进行整体检测，可进一步有效地提高信杂比，改善雷达的检测性能。最后在毫米波段的实验仿真结果表明该方法是一种非常有效的扩展目标检测方法。 |
| 关键词: 高分辨 极化 目标检测 |
| DOI： |
| 投稿日期：2000-04-30 |
| 基金项目:国家自然科学基金资助项目(69902010) |
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| A New Method of High-resolution Polarization Target Detection |
| LI Yongzhen, WANG Xuesong, XU Zhenhai, XIAO Shunping, ZHuang Zhaowen |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| The problem of detecting targets in the cluttered circumstance with wide-band high-resolution radar is studied. A way of improving SCR(Signal-to-Clutter-Ratio) is presented by linear integration filtering in polarization domain. With the intrinsic high-resolution characteristic of wide-band waveform, one-dimension range profile of radar target can be obtained. The number and distribution of intense scatterers in radar returns can be estimated. A polarization target detection method is presented based on the correlation of these intense scatterers in various resolution cells. SCR can be improved efficiently and so can the detection performance of radar. The experiment results show that this method is a very effective detection strategy for extended targets. |
| Keywords: high-resolution polarization target detection |
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