正交的

in order to simplify a process of getting parameters of daubechies biorthonormal wavelet, according to the fourier cosine transform of scale equation of daubechies biorthonormal wavelet, an algorithm is proposed when the daubechies biorthonormal wavelet has even symmetry double scale parameters.

摘 要：为简化daubechies双正交小波因数的求解，以紧支集daubechies正交小波中尺度关系的fourier变换余弦形式为基础，提出1种当双尺度因数为偶对称时，推导daubechies双正交小波对偶尺度方程因数的方法，并给出构造数值实例。

The method of constructing the sign patterns that allow orthogonal matrix is given.

给出蕴含正交矩阵的符号模式的一种构造方法，并证明了一类给定符号模式蕴含正交矩阵，最后对蕴含正交矩阵的符号模式中零元的个数进行了研究

This paper systemically introduces the history and current status of the study on the problem of orthotropism and displacement back analysis, recounts and concludes the analysis theory about anisotropic rock mass, brings forward some models of displacement back analysis of the rock such as layered orthotropic model, proportional coefficient model, layered homogeneous model and equivalent simplificated model, and establishes target unknown, target functions and arithmetic for these models respectively, through analyzing the character of layered orthotropic rock mass.

本文系统介绍了正交各向异性问题和位移反分析方法研究的历史与现状，叙述与归纳了各向异性岩体的分析理论，通过分析成层正交各向异性岩体的特点，对该类岩体的反分析方法提出了分层正交各向异性模型、比例系数模型、分层均质模型和等效简化模型，并对各类模型分别确定了目标未知数、目标函数与算法。

Taking advantage of polynomials of second degree used in Hill yield criterion, and assuming that the yielding of orthotropy is not influenced by orthotropic hydrostatic pressures, a concise and practical yield criterion is put forward for orthotropy.

保持Hill准则二次函数描述的优越性，并假定具有正交特性的静水压力对正交各向异性材料的屈服不产生影响，提出了一种简洁实用的正交各向异性屈服准则。

Through analysis, we find that the fitting center is changing with coefficient of the polynomial, which causes the error.

对产生这些现象的原因进行了分析，指出拟合过程中拟合中心点随正交多项式系数的改变是导致拟合不够准确的主要原因，提出采用常规二次多项式取代正交多项式进行数据拟合，以克服正交多项式拟合方法的缺陷。

Taking the inner surface of cylinder as the research object,a deeply study on skew surface topography with wavelet lifting scheme was made.

利用双正交小波的优点，使用提升方案，采用边界对称延拓策略，解决了传统滤波函数在突变处和边界处的畸变效应，并以缸套内表面为例，选用bior4.4双正交小波，证明了提升双正交小波在表面形貌分析中的改善作用。

Compared with traditional wavelets and wavelet packets, COWB and COWP have not only better frequency localization, but also waveshape variation.

并指出这种正交小波基的混合不同于2尺度正交小波基的混合，因为它可以来自于同一正交尺度函数。

The relationship between orthogonal linear transformation and theorem of projection is demonstrated in the angle of mathematics analysis meanwhile validating its correctness through analyzing typical applications of transformation.

本文从数学分析的角度推证了正交变换与投影定理的内在联系，通过信号分析中典型正交变换的应用进行了验证，从而揭示了正交变换的内在本质。

Moreover, we discuss the relationship between the residual norm of the quasi-refined approximate eigenpair and that of the refined eigenpair, and the quasi-refined biorthogonalization Lanczos algorithm is given. Some numerical experiments are carried on, and the results illustrate that the newalgorithm is superior to the classic one. 2.We propose the semi-refined biorthogonalization Lanczos method which is based on the refined projection idea.

将精化投影方法的思想和拟精化思想相结合，提出了拟精化双正交Lanczos方法，建立了拟精化近似特征对和精化近似特征对对应的残量范数之间的关系，给出了拟精化双正交 Lanczos算法，并进行了数值实验，具体算例表明，该算法比双正交Lanczos算法优越； 2。

In order to solve this problem, a method is proposed to orthogonalize the non-orthogonal basis composed by non-orthogonal pulses. Applying this method in modulation, a time-frequency joint interpolation filtering scheme called ORTH is obtained.

针对这一问题，本文提出将非正交脉冲所构成的非正交基进行正交化，并应用于调制系统，从而得到了一种时频域联合内插滤波的结构，称为ORTH。

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。

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