球面
- 与 球面 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The results of numerical experiments show that the method has the ability to filter the sample noise from limited number of background error member, to estimate the true background error correlation functions.
试验结果表明:基于球面小波的背景误差协方差模拟方法能够克服由有限背景误差样本引入的取样噪声,有效地估计出真实的背景误差相关函数。
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On the other hand, with the purpose of fuzzy feature extraction and fuzzy classification device design, the undulatory property of maximum and minimum scattering power corresponding respectively to the maximum and minimum eigen-polarization has been investigated in frequency domain. Furthermore, the anisotropy polarization degree of target, which is determined by both maximum and minimum scattering power of target, has been studied; meanwhile, the dynamic changing characteristic of eigen-polarization on Poincare polarization sphere has been investigated by means of the conception of polarization frequency stability, the research result shows that PSD value has a big jump near π, forming a sharp pulse, and different target has their individual distribution property of PSD pulse.
另外,围绕目标模糊特征提取及模糊分类器的设计,研究了目标最大、最小本征极化所对应的目标最大、最小散射能量随观测频率的起伏特性,考察了由目标最大、最小散射能量共同决定的目标的各向异性极化程度;同时,采用极化频率稳定度的概念,研究了本征极化在Poincare极化球面上的动态变化特性,在最大、最小散射能量相等的频率点上,PSD曲线呈现为幅度接近π值的尖锐脉冲,反映了目标极化散射结构对这一频率跳变极为敏感,但不同目标的这种PSD曲线特征又有很大的不同。
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Ball bearing unit is with excellent running precision and easy re-greasing.
带座外球面轴承具有良好的旋转精度,可方便的再润滑。
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Whether the area and the shape of the discrete global grids model units are similar to each other affects the precision of the model.Therefore the quantitative analysis of the unit geometry distorts,distribution rule and so on is one of the important parts in model creating.
球面离散格网模型单元的面积、形状是否相似关系到模型的精度,因此定量分析单元的几何变形、分布规律等是格网模型建模的重要组成部分。
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This project is to study mainly some problems in the harmonic analysis on the unit sphere with reflection-invariant measures, and others associated with reflcetion-symmetry.
本项目主要研究了球面上带有反射不变测度的调和分析问题和其它与反射对称有关的问题。
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In section four, we study the problem of isometric extension from the unit sphere of Banach space, which we also called Tingley's problem.
第四节介绍单位球面上的等距延拓问题,这是一个准线性问题。
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Convex modulus depicted overall degree of convexity of the unit sphere of spaces. It was very different for degree of convexity of each point that it would produce very great influence on the whole feature of the spaces.
凸性模刻划了空间单位球面的总体凸性程度,但是每一点的凸性程度都有很大的不同,这将会对空间的整体性质产生很大影响。
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This paper discussed an important step in volume rendering—— shading , using a fast algorithm based on a unit sphere segmentation.
针对体绘制的一个重要环节——明暗度的处理,提出了一种基于球面三角化的快速算法,其速度较传统的明暗度处理方法快近 2倍,同时大大节省了中间数据的存储量,有利于在微机上实现。
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The numerical results based on this algorithm show that it is possible to obtain a reasonable recovery of the shape of the three-dimensional obstacle from the incomplete far-field measurements for low wavenumbers even when the observation range is as small as the quarter of a unit sphere.
基于这个算法的数值模拟表明了,对较小的波数,即使只用测量范围为四分之一单位球面范围中少量测量方向上的信息,得到三维障碍物的一个合理的重构也是可能的。
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Euler-Lagrange equations of the functionals defined on the unit sphere S〓 with more general form is also educed, which is beneficial to the discussion of the behavior of those functionals in chromaticity diffusion.
我们还导出了球面上的较一般形式的泛函的Euler-Lagrange方程,为进一步研究不同泛函用于色彩扩散的性态打下了基础。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。