| 摘要: |
| 文章提出了一种通过增加转发站，实现定向远距离目标探测的新体制雷达。该体制雷达由发射站、转发站和接收站三部分组成。探测过程中，通过转发站抵近目标的方式实现远距离目标探测。发射站发射正交波形探测信号覆盖目标区域，转发站抵近目标区域，对目标散射信号进行接收并错频回传，接收站接收回传信号，实现目标探测。基于探测信号的正交性，该雷达利用单通道转发站即可实现远距离目标探测。单通道转发站使得雷达具备远距离探测能力的同时，符合抵近探测所需的简单化、轻量化的需求。文章对该体制雷达的工作原理进行了理论论证和数值仿真分析。 |
| 关键词: 收发分置雷达 正交编码 抵近探测 目标检测 |
| DOI：DOI:10.3969/j.issn.1672-2337.2020.06.014 |
| 分类号:TN951；TN955 |
| 基金项目: |
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| Proximity Detection Radar System Based on Off-Site Signal Processing |
|
MA Hongxing
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Navy Military Deputy Office in Hefei Region, Hefei 230088, China
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| Abstract: |
| A new radar system is proposed in this paper. A transponder is introduced in the radar detection path, which aims to increase the detection range. The radar system consists of transmitter, transponder and receiver. It achieves long distance target detection by introducing a transponder near the target. The transmitter radiates orthogonal signal covering the detection area. The transponder approaches the target, collects the scattering signal and retransmits the signal to the receiver based on different working frequency. The receiver acquires the echo signal and achieves target detection.Based on the signal orthogonality, the radar can achieve detection with the echo signal collected with single antenna. The transponder with single channel is not only helpful to 〖KG-*5〗achieve remote detection, but also satisfies the simplification and lightweight required by the approaching detection. The working principle of the radar system is analyzed theoretically and simulated numerically. In addition, the characteristics and possible applications of the radar system are also discussed. |
| Key words: bistatic radar orthogonal coding proximity detection target detection |
