中文摘要：

电磁波束中目标散射场的解析解和数值解是十分重要的,利用Gram-Schmidt方法,从电磁波束传播与极化的角度构建了三维正交归一化的矢量基,得到了任意矢量在Cartesian坐标系中的表达式与新坐标系中的表达式之间的变换,并对该变换的有效性进行了验证,给出了目标位于任意横向电磁波束中散射场的解析式和相应的数值结果;结果在目标电磁相互作用、粒子散射等领域有应用价值。

英文摘要：

Both results of analytic solution and numerical solution for a target in a general electromagnetic wave beam are crucially important. Through the use of the Gram-Schmidt method, three normalized orthogonal bases in terms of the E. M. wave beam polarization parameters are constructed. The transformations of the components of a vector in the new coordinate system and the conventional coordinate system as well as their validity are developed. The solution of scattering fields of a target in a general transversal electromagnetic wave beam is presented, which can be used in the research of E.M.interaction among targets.