| 动平台分布式相参雷达系统分析 |
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| 引用本文： | 卢佳欣,刘飞峰,缪颖杰,刘泉华,龙腾.动平台分布式相参雷达系统分析[J].信号处理,2019,35(5):825-830. |
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| 作者姓名： | 卢佳欣 刘飞峰 缪颖杰 刘泉华 龙腾 |
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| 作者单位： | 北京理工大学信息与电子学院雷达技术研究 |
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| 基金项目： | 国家重大科研仪器研制项目（31727901）；中国长江学者计划（T2012122） |
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| 摘 要： | 分布式相参雷达通过相参处理,可提升N3倍回波信噪比,从而可大幅度提高目标探测性能,因此分布式相参雷达具有重要的价值。对于地基分布式相参雷达,目前已经进行了大量的研究。本论文将分布式相参雷达系统扩展到运动平台,分析了运动平台下分布式相参雷达所面临的非均匀杂波背景下目标检测以及时/空/频(相)同步等挑战,并对相关问题进行了建模分析,最后对动平台分布式相参雷达系统进行了硬件搭建并对动平台雷达系统性能进行了初步的实验测试。
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| 关 键 词： | 分布式相参雷达 运动平台 接收相参 |
| 收稿时间： | 2019-03-14 |
Analysis on Distributed Coherent Radar System with Moving Platforms |
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| Affiliation: | Radar Technology Laboratory, School of Information and Electronics, Beijing Institute of Technology |
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| Abstract: | Distributed coherent radar system which contains several radar nodes and a fusion central system is firstly introduced by Lincoln laboratory. By joint coherent data processing, these radar nodes can be equivalent to a big and powerful monostatic radar. The echo signal to noise ratio (SNR) of such radar system could be increased by N3 times by fully coherent processing, which could greatly improve the radar detection performance. A lot of research had been done for ground based coherent distributed radar. In this paper, the distributed coherent radar system is extended to the moving platform. This paper analyzed the problems of target detecting in the nonuniform clutter environment as well as time/space/frequency (phase) synchronization challenges. Besides, the signal models of related problems had been initially established. Finally, the distributed radar prototype with moving platforms had been built and the preliminary experiments had been carried out. |
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