一种计算复杂旋转对称目标散射的FEM-COM-PML方法  

A FEM-COM-PML Algorithm for Scattering From Complex Body of Revolution

作　　者：张骅[1] 李欣[1] 许家栋[1] 

机构地区：[1]西北工业大学电子信息学院,西安710072

出　　处：《弹箭与制导学报》2006年第S5期300-302,共3页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：航空科学基金(05F53032)

摘　　要：介绍了一种计算复杂旋转对称目标散射的有限元和互补完全匹配层的混合方法,这种方法准确的模拟了旋转对称轴上的边界条件,减小了人工边界上的反射误差,得到了准确的结果。与矩量法相比,这种方法十分有效,尤其对于包含多层或各项异性材料时更是如此。它可用于处理复杂的电大尺寸旋转对称目标。A hybrid technique is presented that combines the Finite Element Method(FEM)and Complementary Perfectly Matched Layers(COM-PML)for simulating electromagnetic scattering from complex Body of Revolution (BOR)objects.This technique correctly models the boundary conditions along the axis of revolution,reduces numerical error associated with the artificial reflection and yields highly accurate solutions.The technique is highly efficient as compared to the method of moments(MOM),especially for BORs comprising layered or inhomogeneous materials.It is applicable to a variety of complex,large-size BOR objects.

关 键 词：旋转对称目标 电磁散射 有限元 互补完全匹配层 

分 类 号：TN953[电子电信—信号与信息处理]