In order to study the electromagnetic(EM) scattering from rough sea surface with presence of an electrically large complex target such as warship,an efficient algorithm based on hybrid patch projection(HPP) and physical optics(PO) method is proposed to calculate the coupling scattering of the target and underlying sea surface.
针对粗糙海面上舰船类超电大尺寸复杂目标电磁散射问题,提出了一种基于混合面元投影(HPP)和物理光学法(PO)的计算目标与海面耦合散射的快速算法。
In graphical electromagnetic computing(GRECO),the image rendering resolution was adjusted to improve the physical optics(PO) integral evaluation accuracy.
在图形电磁计算中,通过控制图像绘制分辨率提高物理光学积分的计算精度。
An analysis of numerical methods for physical optics integral;
计算物理光学积分的几种数值方法的分析
Study on the teaching and learning of the physical optics
浅谈《物理光学》的教与学
In order to improve the accuracy of numerical results,speed up computation and avoid the internal resonance problem,bi-directional overlapping regions and forward sweeping from the center of physical optics.
该方法首先将散射体划分为若干子区域,然后步进迭代每个子区域的电流,最终精确重构整个目标的雷达散射特性;为了改善数值精度和计算速度,有效地克服内谐振现象,采用"双向重叠区域"设置和"物理光学中心前向迭代"等一些策略;数值方法表明,同传统矩量法相比,空间分解技术的使用,有效避免了内谐振的产生,加速了阻抗矩阵的求逆。
Predicting Line_Antenna Radiation Model Using the Method of PO;
物理光学方法应用于预测线天线辐射模型
When PO(Physical Optics)method is used to calculate the scattered field of electrically large objects,the double reflection between two objects should be considered independently.
采用物理光学方法计算电大目标散射场时,模型间的二次散射场需要单独考虑。
The scattered field distribution was computed using Physical Optics (PO) method and Incremental length diffraction coefficients (ILDC) method and then maps scattering intensity into azimuth-range resolution cell accumulatively, and the mapping result was convoluted with the transmission function o.
方法采用散射中心模型,基于高频预估理论,用物理光学(PO)法与增量长度绕射系数(ILDC)法计算目标表面散射场强度分布,将强度值累积映射到SAR图像的分辨单元内,与成像系统传输函数卷积,获得近似仿真结果。
This part of the subject is called physical optics.
这部分内容叫做物理光学。
Research on and Implementation of Electromagnetic Modeling Method Based on Physical Optics;
物理光学电磁建模方法的研究与实现
RCS computation Based on computer graphics and physical optics
基于计算机图形学、物理光学法的RCS算法
laser beams, radiation, physics
激光束、 激光辐射、 激光物理学
Physics studies mechanics, heat, light, sound and electricity.
物理学研究力学、热学、光学、声学和电学。
actinic focus
【物理】光化学线焦点
Photophysical and Photochemical Characteristics of Domestic Photosensitizers
国产光敏剂的光物理和光化学特性研究
Synthesis, Photochemical and Photophysical Properties of 1, 8-Naphthyridine Derivetives;
1，8-萘啶衍生物的合成、光化学和光物理性质
Photovoltaic cells are a product of modern solid-state physics.
光电池是现代固体物理学的产物。
On Teaching Optics the 21st Century;
试论21世纪物理专业《光学》之教学改革
Synthesis, Photochemical and Photophysical Properties Study on Photo-functional Cu(Ⅰ) Compounds;
光功能Cu(Ⅰ)配合物的合成、光化学和光物理性质研究
A Study on Molecular Spectra of Aicohol-Water Mixtures and the Diffusion Theory with Photon Density Wave;
醇类物质光谱学和光子密度波扩散理论研究
Thickness Measurement of Thin Film Based on White-Light Spectral Interferometry
基于白光干涉的光学薄膜物理厚度测量方法
Physics does not inquire into the essence of atoms or of light.
物理学并不探求原子或光的本质。
Photolysis Kinetics and Mechanism of Anthraquinones;
蒽醌化合物光解动力学及其机理研究
(physics) nuclear physics.
（物理学）核物理学。
Crystal optical characteristics of transparent minerals appeared in these systems of monopolarizer, crossed polarizer and conoscope will be observed and explained with the fundamentals of crystal.
观察并用晶体光学的基本原理解释单偏光系统、交偏光系统、光系统下透明矿物的晶体光学特征。
Comparison of Photophysico-chemical Properties of Four Perylenequinonoid Derivatives;
四种苝醌类衍生物光物理化学性质的比较