| 舰载直升机旋翼后向雷达散射截面分析 |
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| 引用本文： | 卞大鹏. 舰载直升机旋翼后向雷达散射截面分析[J]. 中国舰船研究, 2010, 5(3): 74-77. DOI: 10.3969/j.issn.1673-3185.2010.03.017 |
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| 作者姓名： | 卞大鹏 |
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| 作者单位： | 中国舰船研究设计中心军事代表室,湖北,武汉430064 |
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| 摘 要： | 通过准静态法，建立计算模型，利用物理光学法和物理绕射理论，计算旋转螺旋桨在不同入射角下的后向RCS值，分析旋转螺旋桨的后向雷达散射截面与叶片扭角和叶片数量的关系。认为调整螺旋桨叶片扭角能改变RCS最大值出现方向；增减叶片可改变螺旋桨RCS变化周期，但不会改变RCS最大值。该研究结论对含螺旋桨飞行器的隐身设计具有一定的参考价值。
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| 关 键 词： | 旋转螺旋桨 物理光学法 物理绕射理论 雷达散射截面 叶片扭角 |
Analysis of Backscattering Radar Cross Section by Rotating Propeller of Shipborne Helicopter |
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| Bian Da-peng. Analysis of Backscattering Radar Cross Section by Rotating Propeller of Shipborne Helicopter[J]. Chinese Journal of Ship Research, 2010, 5(3): 74-77. DOI: 10.3969/j.issn.1673-3185.2010.03.017 |
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| Authors: | Bian Da-peng |
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| Affiliation: | Bian Da-peng (Military Representative Office in China Ship Development and Design Center, Wuhan 430064, China) |
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| Abstract: | The backscattering radar cross section of rotating propeller of shipborne helicopter was calculated based on physical optics （PO） and physical theory of diffraction（PTD）, combining with the quasistationary method. The skew angle and the numbers of vane affecting the backscattering radar cross section （RCS） of rotating propeller were investigated. The results show that the maximum RCS value would be changed in the direction with the regulation of skew angle of propeller vane, and RCS variation cycle instead of maximum value changed with the numbers of the vane. The conclusion drawn from this investigation will be beneficial to the stealth design of shipborne rotorcraft |
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| Keywords: | rotating propeller physical optics physical theory of diffraction radar cross section skew angle |
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