| 摘要: |
| 外辐射源雷达使用第三方发射的电磁信号进行目标探测和定位，利用一个或多个发射站不同频率的广播照射源进行目标探测可以扩大外辐射源雷达覆盖范围，提高目标检测能力和探测精度。针对外辐射源雷达多频探测的需求，设计了一种高集成度、小型化宽带外辐射源雷达系统。最后基于双频DTMB信号目标探测进行了外场实验，介绍了实验场景以及信号处理流程，给出了初步探测实验结果。外场实验验证了该系统良好的目标探测性能。 |
| 关键词: 外辐射源雷达 宽带 多频 DTMB |
| DOI：DOI:10.3969/j.issn.1672-2337.2019.05.002 |
| 分类号:TN958.97 |
| 基金项目:国家重点研发计划(No.2016YFB0502403)；国家自然科学基金(No.61701350)；博士后创新人才支持计划(No.BX201600117)；湖北省自然科学基金(No.2016CFA061) |
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| Design and Principle Experiment of Broadband Passive Radar System |
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XIE Yuxin，WAN Xianrong，CHENG Feng，WANG Ke，HU Xiaokai
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1.School of Electronic Information，Wuhan University，Wuhan 430072，China;2.Tongfang Electronic Science and Technology Co Ltd，Jiujiang 332007，China
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| Abstract: |
| Passive radar exploits the electromagnetic signals emitted by the opportunity illumination to detect and locate targets. Target detection in passive radar using the multi frequency broadcast illumination sources from one or more transmitters can improve the radar coverage area and enhance the target detection capability. In this paper，a high integration and miniaturized broadband passive radar receiving system is designed to meet the need of target detection by using multi frequency signals. At the end of the paper，the experiment based on the real data is carried out to verify the effectiveness of target detection with dual frequency DTMB signals. The experimental scene and signal processing structure，as well as the results are given. The experiment results have demonstrated the reliability of the receiving system and the effectiveness of target detection performance. |
| Key words: passive radar broadband multi frequency DTMB |
