随机分布介质的多层特征基函数分析  

Multilevel characteristic basis function analysis of randomly distributed dielectrics

作　　者：辛宏涵[1] 孙玉发[1] 葛烨[1] 卢克[1] 

机构地区：[1]安徽大学电子信息工程学院,安徽合肥230601

出　　处：《合肥工业大学学报（自然科学版）》2013年第5期586-589,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(61172020);安徽大学2011年大学生科研训练计划资助项目(KYXL20110056)

摘　　要：文章采用蒙特卡罗法模拟出随机分布的介质目标,并应用多层特征基函数法计算了其远区散射场。多层特征基函数法与特征基函数法相比,能更高效地计算电磁散射问题。基于Foldy-Lax多径散射方程,将目标以及划分的子域进一步剖分为若干小子域,进而进一步降低待求矩阵的维数。模拟数值计算结果与传统特征基函数法的计算结果吻合良好,计算效率明显提高。The Monte Carlo method is used to simulate randomly distributed dielectric objects and the far field of dielectric objects is calculated by multilevel characteristic basis function method （MLCBFM）. ML-CBFM can solve electromagnetic scattering problems more efficiently compared with the characteristic basis function method. The object and sub-blocks which have already been divided will be further divided into more sub-blocks to reduce the size of the matrix based on the concept of Foldy- Lax multiple scattering equations. The numerical simulation results are in good agreement with those of traditional characteristic basis function, and the calculation efficiency is improved significantly.

关 键 词：蒙特卡罗法 多层特征基函数法 电磁散射 介质目标 随机分布 

分 类 号：TN011[电子电信—物理电子学]