| 基于极化不变量特征的雷达目标识别技术 |
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| 引用本文： | 王福友,罗钉,刘宏伟. 基于极化不变量特征的雷达目标识别技术[J]. 雷达科学与技术, 2013, 11(2): 165-172 |
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| 作者姓名： | 王福友 罗钉 刘宏伟 |
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| 作者单位： | [1]中航工业雷达与电子设备研究院,江苏无锡214063 [2]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071 |
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| 摘 要： | 极化是雷达目标具有的特性之一。以电磁散射计算仿真的圆锥形弹头模型、球形和圆柱形诱饵模型为研究对象,在极化不变量理论基础上对这些简单目标的极化特性进行了试验分析研究,提出了一种新的组合极化不变量特征(功率矩阵迹与行列式的比值)用于雷达目标识别,并给出了其对应实际的物理意义。文中以SVM为分类器,提出基于功率矩阵迹、去极化系数和功率矩阵迹与行列式的比值特征进行分类识别,结果表明,该方法可以有效地将弹头和诱饵进行分类识别。
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| 关 键 词： | 雷达目标识别 极化 功率矩阵迹 去极化系数 功率矩阵迹与行列式的比值 |
Radar Target Classification Based on Some Invariant Properties of the Polarization |
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| WANG Fu-you,LUO Ding,LIU Hong-wei. Radar Target Classification Based on Some Invariant Properties of the Polarization[J]. Radar Science and Technology, 2013, 11(2): 165-172 |
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| Authors: | WANG Fu-you LUO Ding LIU Hong-wei |
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| Affiliation: | 1. AVIC Radar and Avionic Institute, Wuxi 214063, China ; 2. National Key Lab of Radar Signal Processing, Xidian University, Xi＇an 710071, China) |
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| Abstract: | Polarization is one of the main target features. This paper uses electromagnetic scattering computation to model cone warhead, bait（sphere and column）. Experiment analysis of the invariant proper- ties of the polarization scattering matrix（IPPSMs） for the simple targets is given. A new IPPSM（the ratio for trace of power scattering matrix to determinant） is first presented and its physical characteristic is also given. SVM is used as classifier, and trace of power scattering matrix, depolarization and TPSMD are presented for target classification. The recognition results validate the effectiveness of theoretical analysis. |
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| Keywords: | radar target recognition polarization trace of power scattering matrix depolarization trace of power scattering matrix to determinant |
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