| 基于实测数据的海杂波时空相关性分析 |
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| 引用本文： | 刘宁波,董云龙,于家伟,丁昊,关键,王国庆.基于实测数据的海杂波时空相关性分析[J].海军航空工程学院学报,2017,32(2):199-204. |
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| 作者姓名： | 刘宁波 董云龙 于家伟 丁昊 关键 王国庆 |
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| 作者单位： | 海军航空工程学院信息融合研究所,山东烟台 264001 ;中国航天科工集团第二研究院二十三所,北京 100854,海军航空工程学院信息融合研究所,山东烟台 264001,西南交通大学电气工程学院,成都 611756,海军航空工程学院信息融合研究所,山东烟台 264001,海军航空工程学院信息融合研究所,山东烟台 264001,海军航空工程学院信息融合研究所,山东烟台 264001 |
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| 摘 要： | 海杂波的相关特性分为时间相关性和空间相关性,二者均与雷达系统参数、环境条件等多种因素有关。文章利用X波段雷达实测海杂波数据,重点研究了不同极化条件下海杂波的时间相关性、高低典型海况和不同入射余角条件下的海杂波距离向和方位向空间相关性。经大量实测数据验证表明,极化方式对海杂波强时间相关性影响较小,海杂波距离向空间相关性受海况影响较大、方位向相邻分辨单元空间相关性较弱,这些结论对于海杂波中目标检测方法优化设计具有重要意义。
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| 关 键 词： | 雷达 海杂波 时间相关 空间相关 |
Spatial & Temporal Correlation Analysis of Sea Clutter Based on Real Radar Data |
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| LIU Ningbo,DONG Yunlong,YU Jiawei,DING Hao,GUAN Jian and WANG Guoqing.Spatial & Temporal Correlation Analysis of Sea Clutter Based on Real Radar Data[J].Journal of Naval Aeronautical Engineering Institute,2017,32(2):199-204. |
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| Authors: | LIU Ningbo DONG Yunlong YU Jiawei DING Hao GUAN Jian and WANG Guoqing |
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| Institution: | Institute of Information Fusion Technology, NAAU, Yantai Shandong 264001, China ;No.23 Institute of the Second Academy, China Aerospace Science and Industry Corporation, Beijing 100854, China,Institute of Information Fusion Technology, NAAU, Yantai Shandong 264001, China,School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China,Institute of Information Fusion Technology, NAAU, Yantai Shandong 264001, China,Institute of Information Fusion Technology, NAAU, Yantai Shandong 264001, China and Institute of Information Fusion Technology, NAAU, Yantai Shandong 264001, China |
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| Abstract: | The correlation characteristics of sea clutter are time-dependent and spatial-dependent, which both are relatedto radar system parameters, environmental conditions and other factors. In this paper, the X-band real sea clutter datawere used to study the temporal correlation of sea clutter under different polarizations, as well as the distance-spatial corre.lation and azimuth-spatial correlation respectively on the typical high and low sea conditions and at different grazing an.gles. The experimental results showed that the polarization had little effect on the time correlation of the sea clutter, the dis.tance-spatial correlation of the sea clutter was greatly influenced by the sea condition, and the azimuth-spatial correlationof the azimuthal adjacent resolution unit was weak. These conclusions are of great significance to the optimization of targetdetection method in sea clutter. |
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| Keywords: | radar sea clutter temporal correlation spatial correlation |
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