波函数

Using 2-dimension correlation coefficient and correlation function, we can find multiwavelet that is fit for compression coding of cloud image.

并利用二维相关系数和二维相关函数，找到适合对气象卫星数字云图进行压缩编码的多小波。

By using the meshless method, a numerical ocean engineering basin was established to simulate irregular waves propagated in shallow water. Locating the source points outside the computational domain, the problem of water wave propagation was solved by collocation of only a few boundary points instead of meshes.

采用基于配点和径向基函数的无网格数值模拟方法，建立数值海洋工程水池，将源点布置在模拟波浪场之外，沿边界布置配点而不是划分网格；对深水不规则波经斜坡过渡后在均匀水深浅水域中传播的过程进行无网格数值模拟和波谱的迭代修正。

A new method is presented to construct a kind of compactly supported biorthogonal wavelet based on human visual system.

构造了一个与人的视觉系统模型的调制转移函数相近似的紧支撑双正交小波基。

As a result, an algorithm is presented for constructing compactly supported orthogonal multiwavelets from the associated multiscaling function.

由此给出一种由多尺度函数构造相应紧支撑正交多小波的算法。

Adopt the generalized maximum likelihood radio test based on the Neyman-Pearson algorithm, to study two unresolved Rayleigh targets. And deduced the detection statistic which is chi-square random variable, which only need to know the conditional probability density functions of echo's measured amplitude, in-phase and quadrature of monopulse radio, but the signal-to-noise radio and the direction-off-arrival of any signal are unnecessary.

采用基于涅曼-皮尔逊准则的广义似然比检测，对不可分辨的两个瑞利目标进行了研究，推出了服从χ2分布的检验统计量，此方法只需要知道目标回波信号测量幅值的条件概率密度函数、单脉冲和差比值的同相和正交部分，而不需要任一目标信号的信噪比和DOA的先验知识。

The principles and characteristics of the DD-DT CWT are analyzed and a Bivariate Shrinkage Function is derivated.

分析了双密度双树复小波变换的原理及特点，推导了双变量收缩函数。

The computation of the Dyadic Green's function for cylindrical waveguides and cavities is approached by the theory of distributions.

本文用分布理论法计算圆柱波导及谐振腔的并矢格林函数。

Interface;SH-wave;Green's function;cylindrical elasticinclusion;scattering cross-section

中文关键词：界面，SH波，Green 函数法，圆柱形弹性夹杂，散射截面

Nowadays both theoretical and experimental investigations have extended the concept of solitons to include the cylindrically and spherically expanding or contracting nonlinear waves displaying general soliton properties with the exception that their amplitudes are functions of the radial distance.

虽然目前，理论和实验研究已经扩展了孤子的含义，其中包括了在柱坐标和球坐标下进行展开或非线性波呈现一般意义上孤子的性质但振幅是半径的函数等。

This thesis is concerned with the structure and behaviors of the waves of global weak entropy solutions for an initial-boundary value problems of scalar conservation laws with weak discontinuous flux function.

本文研究在流函数具有弱间断点的条件下单个守恒律初边值问题整体弱熵解的结构和波的行为。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。