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Moreover, the radiation field of the distorted reflector antenna is calculated by the physical optics method. 在此基础上，通过使用物理光学法直接计算出变形反射面天线辐射场。
Taking physical optics method and geometric theory of diffraction,this article discusses the affection of finite dimension deflector plate to antenna array directional diagram. 关键词：天线阵,方向图,物理光学法,几何绕射理论|全部关键词
Keywords electromagnetic scattering, radar cross section（RCS）, complex target, physical optics method, equivalent currents method, area projection/physical optics; 电磁散射;雷达截面;复杂目标;物理光学方法;等效电磁流方法;区域投影／物理光学方法;阻抗边界条件;表面阻抗;
This part of the subject is called physical optics. 这部分内容叫做物理光学。
Physical Optics Method 物理光学法
physical optics method(PO) 物理光学法
A numerical technique employing the method of moments (MOM) and physical optics (PO) is presented for studying the scattering from a planar slotted waveguide array antennas . 利用矩量法和物理光学法分析了平板波导缝隙阵列天线的散射特性。
The forward-backward methodology is combined with the fast multipole method(FMM) and the iterative physical optics(IPO) to improve convergence and computational efficiency. 详细推导了快速多极子方法结合迭代物理光学法和阻抗边界条件的混合计算公式。
The Physical Optics (PO) method and the Method of Equivalent Currents (MEC) are discussed starting with the concept of RCS and the basic theory of electromagnetic scattering. 本文从雷达散射截面(RCS)的概念及基本电磁散射理论入手,讨论了计算RCS的物理光学法和等效电磁流法。
In this paper, B 3 spline surfaces are introduced to model complex objects, then the radar cross section (RCS) of complex objects modeled with B_3 spline surfaces is calculated by the physical optic (PO) method. 引入B3样条曲面片拟合目标外形，然后利用物理光学（PO）技术分析由B3样条曲面构成的目标的雷达散射截面（RCS）。
A new algorithm for RCS prediction of complex targets is proposed based on ray-tracing and Physical Optics (PO) theory, which is running on GPU. 基于光线跟踪算法原理和物理光学理论，提出了采用图形处理单元(GPU)进行硬件加速的复杂目标RCS快速估计方法。
This direction is only important when used with the Physical Optics (PO card) or with dielectrics (ME card) or with the CFIE (CF card). 在用ME卡建立介质界面时，它用来规定界面两面是何种介质；在用CF卡用CFIE积分方程求解时，它需要给出表面的法向。在其他情况下，没有用处。
The ray optics and wave optics methods for slab waveguides are also explained while the Marcatili's method and the effective index method are introduced for channel waveguides. 研究了平面平板波导的射线理论分析法和电磁场分析法,条形波导的马卡梯里法和等效折射率法。
A new algorithm for RCS of complex objects was proposed based on ray-tracing and Physical Optics(PO) theory. The algorithm is realized on GPU to use the ability of graphics hardware. 在研究光线跟踪算法原理和电磁散射物理光学理论的基础上,提出了复杂目标电磁散射计算的光线跟踪算法,并利用图形处理器(GPU)实现了该算法的硬件加速。
This paper is about how to measure the diameter of a little ball with an optical method. 本文讨论了用光学方法测量小尺寸的球体直径的方法。
A new algorithm for RCS of complex objects was proposed based on ray-tracing and Physical Optics (PO) theory.The algorithm is realized on GPU to use the ability of graphics hardware. 在研究光线跟踪算法原理和电磁散射物理光学理论的基础上，提出了复杂目标电磁散射计算的光线跟踪算法，并利用图形处理器(GPU)实现了该算法的硬件加速。
Measurement of fluctuation of atmosphere refractivity using the near-field optical method[J]. 引用该论文张斗国;王沛;鲁拥华;唐麟;袁仁民饶瑞中;明海.
It has deen proved strictly that the difference is due to making the different approximations of physical optics for the induced currents of the transmitted field and received field. 已经严格证明了差异主要来自接收场和发射场的感应电流作了不同的物理光学近似。
The key point is study the interference pattern of sub-mirrors and the wavefront and draw conclusion in the field of physical optics to get the trait and date of the misadjustment. 研究重点是通过对子镜的干涉图和波前判研以及对系统的物理光学分析获得失调特征和数据，从而指导装调。
The orientations of all developing facets in the crystals and their Miller indices have been determined by means of X-ray and optical method. 用X射线和光学方法测定了各个显露面,确定其密勒指数。