构造的曲面是分片双三次有理参数多项式曲面。
This surface is a piecewise bi-cubic rational parametric polynomial surface.
有理参数多项式曲面的快速逐点生成算法在计算机图形学中有重要的应用。
The fast point-by-point algorithm for generating rational parametric surfaces has important application in computer graphics.
在深入分析参数多项式方法数学原理的基础上,提出了参数分布形状特征式法。
Based on the deep analysis of the principle of parametric polynomial method, shape eigenfunction method is presented in this paper.
讨论了参数多项式曲面的快速生成。给出了用整数加减法逐点生成参数多项式曲面的快速算法。
Rapidly generating parametric polynomial surface was discussed, a fast algorithm of generating parametric polynomial surface was given which is based on integer addition and subtraction.
采用参数多项式方法和振荡流体力学理论,求解静子叶片后的尾流场及尾流场作用下转子叶片通道内的非定常流场。
The wake flow of stator vanes and the unsteady flow in the passage of rotor blades were solved by using oscillating fluid mechanics theory and parametric polynomial method.
利用显式可以计算得到规范多项式的参数。
The parameters of canonical polynomials can be obtained by using explicit formulae.
一种是“可变参数内插法”,另一种是用契比雪夫多项式对卫星直角坐标进行高阶内插的方法。
One of them is "the interpolation of variable parameters" and the other is the higher order interpolation of rectangular coordinates of satellites by means of Chebyshev polynomial.
基于给出的调配函数,构造了带形状参数的多项式曲线。
Based on the presented functions, the polynomial curves with a shape parameter are constructed.
本文分析了梯度辨识算法跟踪时变系统的缺点,提出了一种新的基于局部多项式逼近的变参数梯度估计算法。
The trackability limitation of current gradient algorithm is discussed. A new algorithm, named variable parameter gradient estimation algorithm with local polynomial approximation is proposed.
基于粘弹性随机有限元法(VSFEM)和多项式回归模型,分析了固体火箭发动机药柱结构的随机参数灵敏度。
Stochastic parameter sensitivity of SRM grain structure was analyzed based on viscoelastic stochastic finite element method(VSFEM) and polynomial regression model.
与在多项式中不同,状态方程中的参数拥有特定的物理意义。
Unlike in polynomial, parameters in EOS possess specific physical meaning.
针对此问题,利用不经意多项式估值(ope)协议和服务参数提出了一个改进的方案。
An improved t scheme was proposed using oblivious polynomial evaluation (OPE) protocol and service parameters.
但是,由于行列式中的元素通常是符号化的,即其中每个元素都是关于变元(或参数)的多项式,导致行列式展开时的中间计算过程膨胀(甚至爆炸)。
However, as each entry in the determinant is symbolic, that is, a polynomial in variable(s), this leads to the intermediate expression swell(or explosion) problem in the expansion of determinant.
这种方法能够保证辨识出的参数是最佳的;而且不用求解对应的非线性最小二乘问题,只需求一元多项式的根,从而大大减少计算量。
This approach can guarantee that the identified parameters are optimal, by solving a one-dimensional polynomial equation instead of a nonlinear least square problem.
传统的研究方法是采用多元正交多项式回归参数优化设计,通过获得一些经验公式来进行实验研究。
The multi-element orthogonal polynomial regression is used for traditional optimization technique of parametric optimum design, and the experimental research is done by some experiential formula.
在目前靶场数据处理中,参数估计与补点计算等常用多项式拟合,往往带来较大的截断误差。
In currently range data processing, the estimate of parameters and patch calculating usually use polynomial to approximate, which often make much more truncation errors.
本文在介绍最小二乘曲线拟合原理的基础上,采用二元多项式对姿态参数进行平滑拟合,以实例验证了此方法的有效性。
Based on introducing the principles of the least square conic fitting, this paper USES binary polynomial fitting for the attitude parameters. And an example has proved that this method is useful.
获得了重要待定参数的拟合值,拟合精度接近多项式模型的结果。
Not only are got the fitting values of important parameters, but also the fitting precision is similar to the result of that fitting with polynomial model.
其中一种是目前国内外在钻进参数分析中常用的指数形式,另一种是本文首次应用的多项式形式。
The one is index form that has being used in analyzing drilling parameters at home and abroad. The other, a new polynomial of degree four, is given out in the thesis.
本文用正弦级数与多项式迭加作为位移函数。把有限条单元的端部角点视为节点,并把它们的位移作为未知待定参数。
The selected displacement functions of the finite strip method suggested in this paber art functions iterated by sine series and polynomial.
利用正交多项式序列的正交性及微分算子矩阵,论述了时变非线性分布参数系统参数估计的正交多项式法。
New method of parameter estimation for time varying non linear distributed systems is proposed in term of orthogonality of orthogonal polynomial and differential operation matrix.
本文从一般强度理论出发导出各向异性材料应力形式张量多项式强度理论,根据强度准则的外凸性得到应力二次形式强度准则的强度参数限制条件。
A set of inequality constraint conditions of the strength parameters is derived from the convexity of the strength criterion, which is expressed in a quadric form in terms of stress components.
首先,从产生背景入手,介绍了非参数局部多项式回归估计模型的基本概念以及研究概况。
Firstly, we introduce the research situation of the local polynomial regression estimation and its basic concept from the model's background.
基于这种基函数,建立了一种带多个形状参数的二次双曲多项式曲线,该类曲线对于非均匀节点为C1连续。
Based on the basis functions, quadratic hyperbolic polynomial curves with multiple shape parameters are constructed. These curves are C1-continuous with a non-uniform knot vector.
然后通过对目标RCS回波数据进行多项式拟合,估计进动参数,以此为雷达目标识别提供新的技术思路。
The polynomial model fitting for radar cross section (RCS) of target is used for estimating the parameters of precession, which provides a new way for radar target discrimination.
本文提出多项式模型方次与参数同时估计的一种方法。
Orthogonalization method of simultaneous estimation of polynomial model order and parameter is presented in this paper.
针对伯恩斯坦多项式中参数的不确定性,提出了一种基于遗传算法的具有EBFB特征的小波滤波器优化设计方法。
Due to the uncertainty of parameters of the Bernstein polynomial, a design method for optimizing wavelet filter while maintaining the property of EBFB based on genetic algorithms is presented.
同时给出了关联实验结果的多项式方程的各参数。
The parameters of polynomial equation for fitting the experimental results are also reported.
同时给出了关联实验结果的多项式方程的各参数。
The parameters of polynomial equation for fitting the experimental results are also reported.
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