查询词典 method of approximation

Having investigated the design of classical FIR digital filter, the authors put forward a method of FIR filter design based on Chebyshev best uniform approximation which can be used to separate potential anomalies.

在对经典FIR数字滤波器的设计方法进行研究的基础上，提出了一种可以用于位场分离的基于Chebyshev最佳一致逼近原理的FIR滤波器的设计方法。

The nonlinear stability of three-dimensional disturbances for the Blasius boundary layers is studied. We adopted here the high accuracy method of using the expansions in orthogonal functions along the normal direction and the effective algebraic mapping to deal with the problem in the infinite region. The initial solutions of two-dimensional harmonic waves are given by Landau expansion, and the mean-flow-distortion is calculated by the approximation equation.

运用Landau展开给出了二维谐波的初始解、通过求解线性PSE而得到TS波和C型亚谐扰动的初始站值、以及近似地模拟初始站的均流变形值，以此为初始条件，并结合迭代-预估校正方法来实现非线性PSE的求解和推进，详细地研究了非平行边界层三维扰动C型失稳过程。

Because of taking only advantage of the first item in scattering series, method of Born approximation inversion is only suitable to little disturbance imaging. And it will produce great error in condition of great perturbation.

考虑到上述问题，本文在Bleistein和Cohen等人对Born近似的深入研究基础上，运用地震逆散射理论进行深度成像，反演地层奇性界面的位置。

We investigate the eigen-subspace approximation space-time adaptive processing method of clutter suppression based on the generalized sidelobe canceler .

基于广义旁瓣相消结构，我们研究一种特征子空间近似空时自适应处理杂波抑制方法。

Using the change of variable and fixed point method andmethod of approximation, we obtain some interesting and new results on the existenceand uniqueness of bounded solutions and almost periodic solutions of these equations.

利用变量替换和不动点方法及逼近法，我们得到了此类方程有界解和概周期解的存在性及唯一性的一些有趣的新结果。

In Chapter 4, there are two important structures, loops and stacks for an abstract single-strand RNA. Based on the method of combinatorial enumeration, we make a new discussion about the enumeration problem and get its approximation with the limited length of end loop.

第三部分：RNA二级结构是由一些环和茎组成的结构，在此基础上，本节以端环中自由基数为参量，我们又利用组合技巧解决了一类RNA二级结构的计数并给出了它们的近似值。

In early 3rd century, the ancient Greek women had to body curve and the pursuit of the original "invented", the "model body underwear model body underwear" using the approximation method of modern three-dimensional cutting, and in the waist with metal waist clip plastic waist, then, in this kind of dress of women in society status for the priests, the performers and palace ladies - this is the earliest human research into the "model body".

早在公元三世纪之初，古希腊的女性便有了对身体曲线的追求，并发明了原始的"塑身内衣"，这种"塑身内衣"采用了近似现代立体裁剪的方法，并在腰部用金属腰夹塑腰，当时，穿着这类服装的女性均为处于上流社会地位的祭司、表演者和宫中女士--这是可以考证到的人类最早的"塑体内衣"。

Taking the process of grooving as an example, the optimal solution is worked out with objective simplex method. The degree of approximation between every objective function and given corresponding target value is observed.

以切槽车刀的车削为实例，采用目标单纯形法求得其最优解，确定了每一个目标函数与事先给定的对应目标值的逼近程度。

In this paper, the theoretical model of CQI is described in an atom-diatom system in the condition of the molecular beam, based on the first-Born approximation of time dependent perturbation theory, taking into accounts the anisotropic Lennard-Jones interaction potentials. The method of observing and measuring correctly the differential interference angle is presented. The relation between differential and parameter, velocity is obtained. The relation of the integral interference angle and temperature is discussed.

文中利用一阶含时波恩近似和L-J相互作用势，建立了原子-双原子分子碰撞系统转动传能的量子干涉模型，描述了观察和测量微分干涉角的方法，得到了微分干涉角与碰撞半径和碰撞速度间的关系，同时也得到了积分干涉角和实验温度的关系。

An approximation method of queueing networks in series with exponential servers with buffers, Poisson arrivals and block ing is presented.

本文讨论产品以Poisson过程到达，有K道加工工序，每加工点是有限容量且服务服从指数分布带受阻的排队网络，并给出了平稳条件和在平稳条件下以三节点组合逼近方法得到平均队长。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了