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动态桨叶RCS特性的实验研究

蒙志君 吕明云 武哲

蒙志君, 吕明云, 武哲等 . 动态桨叶RCS特性的实验研究[J]. 北京航空航天大学学报, 2006, 32(09): 1003-1006.
引用本文: 蒙志君, 吕明云, 武哲等 . 动态桨叶RCS特性的实验研究[J]. 北京航空航天大学学报, 2006, 32(09): 1003-1006.
Meng Zhijun, Wu Zhe, . Experimental investigation on RCS characteristics of rotating blades[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(09): 1003-1006. (in Chinese)
Citation: Meng Zhijun, Wu Zhe, . Experimental investigation on RCS characteristics of rotating blades[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(09): 1003-1006. (in Chinese)

动态桨叶RCS特性的实验研究

详细信息
    作者简介:

    蒙志君(1982-),男,湖北监利人,博士生,amengzj@ase.buaa.edu.cn.

  • 中图分类号: TN 974

Experimental investigation on RCS characteristics of rotating blades

  • 摘要: 在微波暗室中测量了金属平板桨叶动态模型的高频雷达散射截面RCS(Radar Cross Section),并通过快速傅立叶变换FFT(Fast Fourier Transform)得到相应的频谱图;详细分析了时域和频域RCS随桨叶片数、雷达波入射方向、入射频率、极化状态和桨叶转速等因素的变化.实验结果表明主要特征是时域RCS呈周期性起伏,频谱图因前行桨叶与后行桨叶散射有差别而不对称,且频谱宽度反映了多普勒效应.取得的结果与已有文献的计算分析一致,对直升机的探测和识别具有重要的参考价值.

     

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出版历程
  • 收稿日期:  2005-11-30
  • 网络出版日期:  2006-09-30

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