Volume 35 Issue 4
Apr.  2009
Turn off MathJax
Article Contents
Ji Jinzu, Liu Zhanhe. Electromagnetic occultation algorithm based on facets grouping and optimization[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(4): 453-456. (in Chinese)
Citation: Ji Jinzu, Liu Zhanhe. Electromagnetic occultation algorithm based on facets grouping and optimization[J]. Journal of Beijing University of Aeronautics and Astronautics, 2009, 35(4): 453-456. (in Chinese)

Electromagnetic occultation algorithm based on facets grouping and optimization

  • Received Date: 23 Apr 2008
  • Publish Date: 30 Apr 2009
  • When calculating complex target-s radar cross section(RCS) with physical optics(PO) method, the facets shadowing relationship was judged through overlapping and depth-of-view of facets along the incident wave direction. The facets were projected on the plane that was perpendicular with the incident wave direction and then grouped to several groups to make sure that the distance of facets in the same group were close. Only the facets in the same group needed to be judged whether they are shadowed or not instead of making the judgement between all of the facets thus the calculating time was saved. The grouping size was optimized to make the the calculating time be the least. The calculating examples showed that this method is feasible and can make the calculating more efficient.

     

  • loading
  • [1] 阮颖铮.雷达散射截面[M].北京:电子工业出版社,1988 Ruan Yingzheng.Radar cross section[M].Beijing: Electronics Industry Press,1988(in Chinese) [2] Johnson J T,Warnick K F,Xu Peng.On the geometrical optics (Hagfors- law) and physical optics approximations for scattering from exponentially correlated surfaces[J].Geoscience and Remote Sensing,IEEE Transactions,2007,45(8): 2619-2629 [3] 黄沛霖.大型、复杂耦合散射目标的RCS计算方法研究 .北京:北京航空航天大学航空科学与工程学院,2003 Huang Peilin.Research on RCS computing technique of large-scale and complicated coupling scattering object .Beijing: School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics,2003(in Chinese) [4] 李争亭,胡毕富,席平.腔体RCS计算前置处理中网格单元的相互遮挡判断[J].工程图学学报,2008,29(1):61-66 Li Zhengting,Hu Bifu,Xi Ping.Mutual occlusion evaluation of duct mesh elements in processing of RCS calculation[J].Journal of Engineering Graphics,2008,29(1):61-66(in Chinese) [5] 陈海涛,卞恩荣.武装直升机红外辐射计算中多重遮挡处理[J].北京航空航天大学学报,2006,32(4):391-394 Chen Haitao,Bian Enrong.New algorithm of processing multi occultation and its application in infrared radiation calculation of military helicopter[J].Journal of Beijing University of Aeronautics and Astronautics,2006,32(4):391-394(in Chinese) [6] 周建江,舒永泽.简单形体目标电磁遮挡算法研究[J].南京航空航天大学学报,1995,27(1):97-101 Zhou Jianjiang,Shu Yongze.Research on electromagnetic shadowing algorithm of simple targets of simple targets[J].Journal of Nanjing University of Aeronautics and Astronautics,1995,27(1):97-101(in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(4134) PDF downloads(1304) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return