查询词典 angular distribution

Through simulating the speckle intensity distribution in the far field of a random rough surface,we compute the degree of angular speckle correlation by substituting spatial average in speckle pattern for conventional ensemble average,and determinate the surface roughn.

通过模拟计算随机粗糙表面的远场散斑场，以散斑图面上的空间平均代替常规的集平均来计算角度散斑相关系数，并应用集平均的数学模型反演粗糙度参量。

Through simulating the speckle intensity distribution in the far field of a random rough surface, we compute the degree of angular speckle correlation by substituting spatial average in speckle pattern for conventional ensemble average, and determinate the surface roughness by the mathematic model of ensemble average.

通过模拟计算随机粗糙表面的远场散斑场，以散斑图面上的空间平均代替常规的集平均来计算角度散斑相关系数，并应用集平均的数学模型反演粗糙度参量。

The mutual coherence and angular correlation function of scattered wave from two dimensional non-Gaussian rough surfaces is deduced using the Gram-Charlie distribution, then the pulse scattering from two dimensional rough sea surface is calculated, and pulse broadeding is discussed.

基于Gram-Charlie分布函数并利用三阶统计特性推导出了非Gaussian二维粗糙面的双频互相关和角相关函数的计算公式，并以二维海面为例计算了其对几种典型波形脉冲的散射，讨论了脉冲展宽效应。

The measurement of roughness parameters of workpiece surface using the technique of light angular scattering distribution has been developed recently.

一、引言在工件表面粗糙度参数的测量中，光的角散射分布方法是一种有发展前途的测量技术。

The concepts and definitions of mean angular separation and subpoints distribution area are introduced.

星座/编队的对地遥感应用要求对卫星群的空间几何特征进行量度和评价。

The model was used to simulate the angular velocity distribution of the liquid Al Si alloy under different magnetic intensity .

在对电磁离心工艺深入分析的基础上，建立了该工艺过程中液态金属角速度分布数学模型·并模拟了不同磁场强度下，液态金属角速度分布·结果表明：为避免铸件产生缩松，在电磁离心铸造过程中，必须有合适的磁场强

Many numerical results are provided to demonstrate the high resolution of the proposed methods. Compared with the conventional MUSIC method, the proposed methods are insensitive to angular signal distribution.

仿真实验结果表明，这些分布式目标波达方向估计方法都具有较高的分辨能力，与基于点目标假设的常规MUSIC方法相比，本文提出的分布式目标DOA估计方法对信号源的分布特性不敏感。

It is still needed to do some work to determine the deformation parameter β2 for light odd-odd nucleus, like 6Li and to calculate all reaction channels by means of CDCC code simultaneously. It is important to measure the exclusive angular distributions of breakup fragments.In theory, the coupling channel equations have been deduced from one-dimensional to multi-dimensional barrier tunneling. The couplings between the entrance channel and the other channels have appreciable effects on sub-barrier fusion cross section. Instead of single fusion barrier,these couplings lead to a distribution of fusion barrier Dfus.

描述了已有理论，从简单的一维势垒穿透模型出发，引入多维势垒穿透和耦合道模型，证明入射道相对运动与碰撞核各种自由度的耦合导致熔合势垒的劈裂，较低的势垒有利于垒下熔合截面增强；给出了从熔合激发函数抽取势垒分布及从背角准弹激发函数抽取势垒分布的理论依据，以及它们的优缺点。

The quasi-elastic barrier distribution D〓 extends to low energy region and enhances the fusion cross section at the sub-barrier energies. It is still needed to do some work to determine the deformation parameter β〓 for light odd-odd nucleus, like 〓Li and to calculate all reaction channels by means of CDCC code simultaneously. It is important to measure the exclusive angular distributions of breakup fragments.

得到参数化的和能量相依的相互作用势公式；发现弱束缚核〓Li+〓Pb阈异常与〓Li的形变参数β〓相关，垒下存在强的吸收势；给出破裂对熔合截面的影响在垒上压底垒下增强；熔合势垒分布向低能端展宽，有利于垒下熔合截面增强等结果；对如何确定轻的奇-奇核的形变参量β〓提出了疑问；需解决如何用从弹散角分布抽取的光学势参数，进行CDCC程序全反应道统一描写；迫切需要破裂碎片关联测量的实验数据。

Based on the relations of the diffraction field and the surface wave, which conclude diffraction factor and interference factor, some relations were conformed such as: the diffraction fringes spatial distribution versus surface wavelength, the fringes half angular width versus the numbers of surface wave covered by laser spots and incidence angle, diffraction intensity versus surface wave amplitude.

通过对衍射因子和干涉因子的分析，得到衍射条纹空间分布与表面波波长的关系、条纹的半角宽度与入射激光光斑覆盖表面波的个数和入射方向的关系、衍射光强度与表面波振幅的关系，并解释了条纹缺级现象。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。