| 一种基于GRECO的复杂目标棱边建模方法 |
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| 引用本文： | 沈思瀚,潘明海,王 龙. 一种基于GRECO的复杂目标棱边建模方法[J]. 微波学报, 2015, 31(3): 17-21 |
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| 作者姓名： | 沈思瀚 潘明海 王 龙 |
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| 作者单位： | 雷达成像与微波光子技术教育部重点实验室(南京航空航天大学)， 南京 210016 |
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| 基金项目： | 国家自然科学基金资助项目(61071164,61271327);江苏高校优势学科建设工程资助项目 |
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| 摘 要： | 针对复杂目标高频电磁散射,利用CAD 商业建模软件,结合PO、MEC 算法实现目标RCS 计算。对于边缘绕射计算,提出了一种新的建模方法,提高了计算速度。计算结果与数值方法MLFMM 计算结果吻合很好。最后以某战斗机模型为例,实现目标角度域、频域RCS 计算,并且研究了RCS 数据在目标高分辨率距离像中的应用。实验结果表明,该方法对复杂目标高频电磁散射RCS 仿真计算具有一定参考价值。
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| 关 键 词： | 图形电磁计算方法 边缘绕射 等效电磁流法 高分辨率距离像 |
Modeling Method for Complex Target Edge Based on GRECO |
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| SHEN Si-han,PAN Ming-hai,WANG Long. Modeling Method for Complex Target Edge Based on GRECO[J]. Journal of Microwaves, 2015, 31(3): 17-21 |
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| Authors: | SHEN Si-han PAN Ming-hai WANG Long |
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| Affiliation: | Key Laboratory of Radar Imaging and Microwave Photonics (Nanjing Univ. Aeronaut. Astronaut. ),Ministry of Education, Nanjing University of Aeronautics and Astronautics |
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| Abstract: | In view of the complex target in high frequency electromagnetic scattering, by using the commercial CAD modeling software, the goal of the RCS calculation combined with PO, MEC algorithm is achieved. For the target edge diffraction calculation, a new modeling method is presented, which improves the computational efficiency. The computing results are in close agreement with the results of multilevel fast multipole method(MLFMM). Finally with a fighter model as anexample, the goal of angle domain,frequency domain RCS calculation is achieved, and the application of RCS data in the target high resolution range profile is studied. Experimental results show that, this modeling method has some reference value for high-frequency electromagnetic scattering of complex targets RCS simulation. |
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| Keywords: | graphical electromagnetic computing method(GRECO) edge diffraction method of equivalent currents(MEC) high resolution |
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