查询词典 convergence domain

Besides, as to inpainting problem in wavelet domain, we introduce a new iterative model. In this model low frequency and high frequency will carry on processing separately, enormous speed up the image repair convergence rate, and even if as high as 90% wavelet coefficient have been lost, this model will also be able to have the very good repair effect. In the old model, to compute the curvature we have to transform the coefficients to the pixel domain, and then transform back to the coefficient domain for several times and this method can solve this problem and speed up the iterative convergence.

其次针对小波域中图像修复的问题，本文提出了一种新的小波域图像修复模型，该模型根据小波变换后系数相关性的特点，将低频和高频分别进行处理，极大的加快了图像修复的收敛速度，并且即使丢失高达90%的小波系数，该模型也会有很好的修复效果，有效的解决了传统的TV- Wavelet模型在计算图像的平均曲率WCURV时，需要反复进行小波分解与重构的计算，迭代速度慢的问题。

Generalized Pulse-Spectrum Technique is a kind of widely applied and effective methods for solving inverse problems of geophysical prospecting. But it is still imperfect in the aspects of convergence domain, ability of anti-noise, computaional cost, choice of regularized parameter, and so on.

广义脉冲谱方法是求解地球物理反问题的应用广泛而有效的一类方法，但在收敛范围、抗噪能力、计算量、以及正则参数选取等方面仍存在较大不足。

Watermarking signal was constructed by geometric data of mesh, after geometric feature extracting in spatial domain and energy's convergence in transformed domain.

水印由网格的几何数据经过空域特征提取及变换域能量集中后生成。

This algorithm characterizes large convergence domain and better reduction noise performance, especially in condition of 5dB～20dB SNR.(6) An equalizer to compensate non-linear time-variant channel in chaotic communication system is conducted.

同其它的方法相比，这个新的迭代算法具有大范围的收敛区域和良好的降噪效果，特别是在信噪比为5dB～20dB时，明显优于其它方法。

For a long time, it is a main factor to hamper the real-time application of SHET. The research is carried on aiming to quickening convergence speed. The automatic-changing Homotopy algorithm is proposed in the dissertation. The algorithm, which can change the solving method based on fundamental component, has the advantages of large convergence domain, high convergence rate and high precision. Many trigonometric functions are contained in the mathematical model, during solving equation, the calculated speed and the precision are affected by the calculations of trigonometric functions.

特定谐波消除技术的数学模型是一组非线性方程组，长期以来，方程的求解一直是限制该技术实时应用的关键因素，本文针对特定消谐方程组的快速求解进行细致的研究，提出自动变同伦算法，该算法可根据基波幅值的取值范围来决定采用的求解方法，其对求解方法的可选择性使该算法与其它算法相比具有计算速度快、收敛域宽、计算精度高等优点。

But it is a hard task to solve this equation, one reason is that the TV-norm is nondifferentiable when |▽_u|= 0, so we cant apply a linearizationtechnique such as the Newton method. The other reason is that the Euler-Lagrange equation has a highly nonlinear term. The Newton method for such equation is known to have a very small domain of convergence, and it is very difficult to make sure that the initial value such as the observed image belongs to this domain. So the Newton method is not an ideal method for solving this equation.

但是求解它比较困难，主要是因为TV-范数在|▽u|=0处不可微，不能用诸如牛顿法之类的方法将其线性化；且Euler-Lagrange方程含有一个高度非线性的项，牛顿法只有局部收敛性，对于高度非线性问题它的收敛域很小，因此难以保证所取的初始点在它的收敛域内，故一般不用牛顿法直接求解。

The bioinformatics analysis showed that the gene had the highest homology with the gene of Penicillium janthinellum, which reached up to 76%. The first 26 amino acids might be a signal peptide sequence with the hydrophobicity of up to 2.63. The CBHⅠ gene consisted of the catalytic domain, convergence zone and cellulose-binding domain and its tertiary structure was mainly composed of 3-sheets.

分别扩增到鹅源草酸青霉F67纤维素酶CBHⅠ基因片段A(EU574736)、5'端序列B1(EU603295)、3'端序列B2(EU652768)及全长基因C(EU727171)，并成功构建真核表达载体pPIC9K-CBHⅠ；生物信息学分析表明，该基因蛋白序列与微紫青霉氨基酸序列同源性最高，达76%，前26个氨基酸为信号肽序列，疏水性可达2.63，由催化功能域、衔接区和真菌性纤维素结合域构成，其三级结构主要为β-sheet。

After analyzing the limitation of slow convergence in adaptive Least Mean Square algorithm, it is brought forward the method of transforming signal into frequency domain, taking advantage of the orthogonality of discrete Fourier transform, the adaptive LMS filter is performed for each frequency element in transform domain.

四川大学博士学位论文在频域自适应滤波的基础上，提出了一种权值反馈方法抑制图像传输中的多个大功率平稳强窄带干扰信号，不仅能加快算法的收敛性能，并具有良好的滤波效果。

For overlapping domain decomposition method, we prove the geometric convergence for continuous algorithm in the sense of energy norm by means of projection theory, analyze the convergence rate of the algorithm in detail. And we also discuss the discretization of the algorithm and its finite element implementation. Some numerical experiments are also given.

对重 叠型区域分解算法，利用投影理论，证明了连续型算法在能量模意义下的几何收敛性，详细地分析了算法的收敛速度，也讨论了算法的离散化及有限元处理，并给出了相应的数值实验。

Also, this dissertation established a sufficient condition for ILC convergence of a class of uncertain nonlinear time varying systems with a discussion on the convergence speed. Furthermore, for a class of linear systems, frequency-domain convergence analysis has been provided for a closed-loop type ILC algorithm with a convergence speed comparison with the conventional Arimoto-type open-loop ILC algorithm.

同时还给出了存在不确定及干扰非线性时变系统迭代学习控制收敛的充分条件，并对闭环迭代学习控制收敛条件和收敛速度进行了频域分析和讨论。

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