基于人造目标极化HRRP的散射机理分类

吴佳妮; 陈永光; 代大海; 庞礴; 王雪松

doi:10.12000/JR16026

基于人造目标极化HRRP的散射机理分类

doi: 10.12000/JR16026

1.
(国防科学技术大学电子信息系统复杂电磁环境效应国家重点实验室长沙 410073)
2.
(北京跟踪与通信技术研究所北京 100094)

基金项目:

国家自然科学基金(61302143, 61490693, 41301490),国家高技术研究发展计划(2013AA122202)

详细信息

通讯作者:
代大海ddh1206@163.com

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- 被引次数: 0
出版历程
- 收稿日期: 2016-01-30
- 修回日期: 2016-03-10
- 网络出版日期: 2016-04-28

Scattering Mechanism Identification Based on Polarimetric HRRP of Manmade Target

1.
(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, National University of Defense Technology, Changsha 410073, China)
2.
(Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094, China)

Funds:

The National Natural Science Foundation of China (61302143, 61490693, 41301490), National High-Tech RD Program of China (2013AA122202)

摘要

摘要: 针对人造目标的极化高分辨距离像,研究了雷达目标的空域极化特性和频率色散特性及其在散射机理分类中的应用。基于散射中心,利用极化分解技术对散射机理的类型进行判别,并分析了极化方位角补偿技术对由目标方位角变化而引起的类型误判的改善。此后结合目标的频率色散特性,得到了散射中心的特征矢量与典型结构间的对应关系,降低了类型判别的不准确性。通过仿真实验,验证了散射中心散射机理分类的有效性,为目标的分类识别提供了支撑与依据。
- 极化高分辨距离像 /
- 散射中心 /
- 散射机理分类
Abstract: In this paper, we analyze the space polarization and frequency dispersion characteristics of the polarimetric High Resolution Range Profile (HRRP) of manmade targets. We integrate these characteristics and propose a novel scheme for scattering mechanism identification. Using a polarization decomposition technique, the scheme first identifies the scattering mechanism of the scattering centers. Specially, it uses an algorithm to compensate for the polarization orientation angle in order to decrease the errors in judgment caused by the varying azimuth. Then, based on the frequency dispersion characteristics, we design threedimensional parameters to discriminate between the scattering centers, in order to decrease the inaccuracy in the discriminations. Finally, we conduct simulations based on electromagnetic data to validate the feasibility of the proposed scheme and to demonstrate that it provides a basis for practical use in target recognition.
- Polarimetric High Resolution Range Profile (HRRP) /
- Scattering center /
- Scattering mechanism identification

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参考文献(19)

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