摘要
对利用时域有限差分(Finite Difference Time Domain,FDTD)法计算雷达散射截面的原理、吸收边界的处理、入射波加入和近远场变换等进行了较详细的介绍.并针对时域有限差分法求解麦克斯韦方程中的计算边界条件进行改进,提出相应的可能解决方案.在VC++6.0环境下编写了二维应用程序并给出了二维算例,与已有的结果作了比较,说明程序是有效的.
It is expatiated that the theory of Radar Cross Section(RCS),disposal of absorbing boundary,addition of incidence wave and transformation of Near-and far-field calculated with Finite Difference Time Domain(FDTD) method.The possible solutions are provided for the improvements to calculative boundary condition of resolving Maxwell equations with FDTD method.The 2D applications are compiled in VC++(6.0) environment and the 2D computing instances are given.Compared with existing results,the application is proved to be valid.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
北大核心
2005年第S2期122-126,共5页
Journal of Yunnan University(Natural Sciences Edition)
关键词
时域有限差分
雷达散射截面
吸收边界条件
近远场变换
finite difference time domain(FDTD)
Radar Cross section (RCS)
absorbing boundary condition
near to far zoon transformation
