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求解电大尺寸目标与地海面复合散射的SBR-IEM混合算法 被引量：1

A SBR-IEM hybrid method for solution of electrically large size and composite electromagnetic scattering from soil/sea surface
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摘要 提出了一种研究大范围地海面背景与电大尺寸目标复合电磁散射的新型混合算法。该算法首先将地海面划分为大尺寸粗糙面元,采用基于快速射线寻迹技术的改进射线追踪(SBR)方法计算目标面元和粗糙面元上产生的相干散射分量;然后,结合积分方程解(IEM)计算粗糙面元上产生的非相干散射分量;最后,通过实例计算,并与KA-MoM结果进行了对比分析,结果表明:改进SBR-IEM混合算法具有较高的计算效率,节省大量存储空间和运算时间。 A hybrid algorithm for analyzing composite EM scattering from soil/sea surface and electri- cally large object is proposed. Firstly, the soil/sea surface is divided into rough facets in large size and the coherent scattering is calculated according to improved SBR. Then, the diffused incoherent scat- tering is calculated with IEM. Finally, the accuracy and efficiency of the hybrid method are validated in numerical examples by contrasting to the KA-Mom,which proves that the improved SBR_IEM al- gorithm has higher computation efficiency and can save a lot of storage and computation time.
作者 李雅萍 齐萌 李西敏 苗海
机构地区 洛阳理工学院计算机与信息工程学院 空军工程大学导弹学院 海军工程大学动力工程学院
出处 《海军工程大学学报》 CAS 北大核心 2016年第4期85-91,共7页 Journal of Naval University of Engineering
基金 航空科学基金资助项目(20130196005)
关键词 复合电磁散射 粗糙面 射线追踪法 积分方程解 混合算法 composite EM scattering rough surface shooting and bouncing ray IEM hybrid method
分类号 TM153 [电气工程—电工理论与新技术]
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参考文献19

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二级参考文献14

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二级引证文献5

海军工程大学学报
2016年 第4期

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