摘要
本文采用有限元方法对等离子体的电磁散射问题进行了多物理场分析。分析了温度场分布与电子密度分布的关系。在得到电子密度分布后,利用Drude模型得到了介电常数的空间分布。随后对圆柱的电磁散射特性进行了分析计算,给出了雷达双站散射截面的计算结果,并对结果进行了分析比较。
This paper uses finite element method to execute multi -physics field ’ s analysis for plasma ’ s electromagnetic scattering problems .The relationship between the distribution of temperature field and e-lectron density is also analyzed .After getting the distribution of electron density ,the spatial distribution of permittivity is available by using Drude method .Then the electromagnetic scattering features of a cylinder is analyzed and computed ,and the computing results of bistatic radar cross section （ RCS） is given.The a-nalysis and comparison of the result is also shown here .
出处
《中国传媒大学学报（自然科学版）》
2014年第2期18-23,7,共7页
Journal of Communication University of China：Science and Technology
关键词
电磁散射
有限元
多物理场
electromagnetic scattering
finite element
multi-physics field
