| 摘要: |
| 研究电大复杂目标的雷达散射截面(RCS)计算及雷达回波模拟仿真技术具有重要意义。基于物理光学法（PO）和弹跳射线法（SBR）设计了一款仿真软件，综合考虑海杂波和噪声的作用，计算舰船动态RCS及雷达回波。针对3种形状、大小不同的船模计算RCS值并仿真分析这些船模在不同场景下的雷达回波信号。仿真结果表明，相比设定RCS均值的方法，动态RCS计算方法更适合在复杂的海面情况中识别目标特性并提取有效信息。研究结果可为雷达系统仿真中的目标识别及电磁隐身技术提供可靠计算方法。 |
| 关键词: 雷达散射截面 雷达回波 动态RCS 物理光学法 弹跳射线法 |
| DOI：DOI:10.3969/j.issn.1672-2337.2019.05.012 |
| 分类号:TN959.72；O441.6 |
| 基金项目:国家自然科学基金(No.41474117)；中央高校基本科研业务费项目 (No.CCNU18GF004,CCNU18JCXK02) |
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| Simulation and Analysis of Naval Vessel Radar Echoes Based on Dynamic RCS |
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ZHU Xuehui，YU Zetai，QIN Xiaoxiao，YANG Helin
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College of Physical Science and Technology，Central China Normal University，Wuhan 430079，China
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| Abstract: |
| It is of great significance to study the radar cross section (RCS) calculation and radar echo simulation technology of the electrically complex target. A simulation software is designed based on physical optics (PO) and shooting bouncing ray method (SBR) to comprehensively consider the effects of sea clutter and noise，and calculate dynamic RCS and radar echoes of ship. The RCS values are calculated for three ship models with different shapes and sizes，and the radar echo signals of these ship models in different scenarios are simulated and analyzed. The simulation results show that the dynamic RCS calculation method is more suitable for identifying target characteristics and extracting effective information in complex sea surface conditions than the method of setting RCS mean. The research result can provide a reliable calculation method for target recognition and electromagnetic stealth technology in radar system simulation. |
| Key words: radar cross section radar echo dynamic radar cross section physical optics shooting and bouncing ray |
