复杂目标GRECO方法的分屏显示计算

张云飞; 马骏

复杂目标GRECO方法的分屏显示计算

张云飞,
马骏

北京航空航天大学航空科学与工程学院, 北京 100083

详细信息

作者简介:
张云飞(1964-),男,湖南长沙人,教授, cloud zhang@buaa.edu.cn.

中图分类号: V 218; TN 974
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- 被引次数: 0
出版历程
- 收稿日期: 2004-10-12
- 网络出版日期: 2005-12-31

Multi-screen display calculation method of GRECO for complex targets

School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 图形电磁计算(GRECO)是一种计算复杂目标雷达散射截面(RCS)的有效方法,但必须先有一个易于提取外形参数的数据文件.基于GRECO法,针对用各种通用商业软件造型生成的模型文件,利用商业软件Rhino进行转化,生成适于RCS计算的数据文件,这种处理数据的方法具有广泛的适用性,且不会丢失任何局部细节.通过分屏显示计算方法,提高了对电大尺寸目标的计算精度;采用OpenGL的显示列表技术使得程序运行花费较少的时间.结合GRECO的特点,提出了一种分析目标散射源的简便的方法,便于分析目标的雷达散射截面特性.结果表明,本方法与面劈法的计算结果吻合较好,具有较好的工程应用价值.
- 电磁波散射 /
- 雷达反射 /
- 图形电磁计算 /
- 图形显示器
Abstract: Graphical electromagnetic computing (GRECO) is an effective method of predicating the radar cross section(RCS) of complex targets, but there must beforehand be a model file from which the shape parameter can be easily obtained. Based on the GRECO, the model file generated by several commercial shaping software could be converted to the type fitting for the RCS calculation by means of the commercial software RHINO. The processing method of data had a wide use and may not delimit any details of model. The multi-screen display calculation methodwas used to improve the precision of calculation when predicting the RCS of electrically large and full size targets. By using display list technology of OpenGL, the program expended less time than before. A simple approach was also presented by which the scattering source of targets can be analyzed expediently. The good agreement between the calculating results of our method and that of plate-edge method indicates that this method possesses practical value in engineering.
- electromagnetic wave propagation /
- radar reflection /
- graphical electromagnetic computing /
- graphic displays

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参考文献(1)

[1] Rius M, Rerrando M, Jofre L. GRECO:graphical electromagnetic computing for RCS prediction in real time[J]. IEEE Antennas and Propagation Magazine, 1993, 35(2):7~13 [2] Asvests J S. The physical-optics integral and computer graphics[J]. IEEE Trans Antennas and Propagation, 1995,AP 43(12):1659~1660 [3] Domingo M. Computation of the RCS of complex bodies modeled using NURBS surfaces[J]. IEEE Magazine, 1995,37(6):36~47 [4] 李民权,吴先良. 复杂目标RCS可视化电磁计算方法的改进[J]. 合肥工业大学学报,2003,26(2):246~249 Li Minquan, Wu Xianliang. Improvement in the method for the RCS graphical electromagnetic computation of the complex target[J]. Journal of HEFEI University of Technology, 2003,26(2):246~249(in Chinese) [5] 严靖峰,徐鹏根. RCS预估中图形电磁学方法的改进[J]. 电波科学学报,1998,13(3):313~317 Yan Jingfeng, Xu Penggen. Improved methods for graphical electromagnetic computing in RCS prediction[J]. Chinese Journal of Radio Science, 1998,13(3):313~317(in Chinese) [6] 高鹰,宁焕生,王宝发. 基于Windows NT的复杂目标GRECO建模[J]. 系统工程与电子技术,1999,21(2):9~13 Gao Ying, Ning Huansheng, Wang Baofa. GRECO fitting of complex targets based on windows NT system[J]. Systems Engineering and Electronics, 1999, 21(2):9~13(in Chinese) [7] 郭晖,龚书喜,赵维江,等. 基于NURBS建模和渐近物理光学的RCS计算研究[J]. 现代电子技术,2002,142(11):13~16 Guo Hui, Gong Shuxi, Zhao Weijiang, et al. On RCS computation using asymptotic PO with surface modeled by NURBS[J]. Modern Electronics Technology, 2002,142(11):13~16(in Chinese) [8] 李修懿,宁涛,席平. 飞行器RCS 预估计算前置处理的曲面元方法 . 北京航空航天大学学报,2004,30(13):254~257 Li Xiuyi, Ning Tao, Xi Ping. Technique based on surface element of prepositive disposal in predicting RCS of aircraft[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(13):254~257(in Chinese) [9] 叶国鹏,张云飞.基于IGES文件输入的图形电磁计算方法研究[J]. 北京航空航天大学学报,2003,30(2):100~104 Ye Guopeng, Zhang Yunfei. Graphical electromagnetic computing method research based on IGES files import[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 30(2):100~104(in Chinese) [10] 北京洪恩教育科技有限公司. 犀牛Rhino 3产品模型设计[M].天津:天津电子出版社,2004 Beijing Human Education Technology Co Ltd. Rhino 3 product model design[M].Tianjin:Tianjin Electronics Press,2004(in Chinese) [11] Board R, Neider J, Davis T, et al. OpenGL programming guide:the official guide to learning OpenGL, release 1[M]. Reading, Mass:Addison-Wesley, 1993

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