central difference是什么意思

网络释义

用法例句

The particle filter uses second-order central difference filter to generate the proposal distribution.

为了改善非线性系统状态估计问题中粒子滤波算法的估计精度,提出采用二阶中心差分滤波方法来产生建议分布函数的新算法。

One is the formula of central difference based on isometric node of interpolation polynomial,and the other is fitting an original function,afterwards finding its derivation.

在MATLAB中,数表函数由于函数表达式未知,不能用diff()函数直接求解,文章介绍了运用拉格朗日插值多项式推导出等距节点数值微分的中心差分公式求数表函数导数,以及拟合原型函数再求其导数,并通过例子演示了这两种方法的MATLAB实现。

The authors present a compound interpolation method of calculating discrete heat conduction flow field,which combines central difference with Lagranges parabolic interpolation.

提出了一种将中心差分与拉格朗日抛物线插值相结合的复合插值法来确定离散导热热流场，并与其它方法进行比较，结果表明该方法具有更高的精度。

In this paper, centered difference method for numerical differentiation is investigated when given noisy data.

:本文给出了在具有随机扰动数据的情况下 ,数值微分的中心差分方法 并在L2 空间中证明了近似解 (正则解 )的收敛性 ,给出了其渐近阶的估

Stochastic central difference method for nonstationary random response of asymmetric nonlinear systems

非对称非线性系统非平稳随机响应的中心差分法

It is shown that the numerical stability condition of the integration formula is same as that of the central difference method.

本文在时域有限元离散的基础上，导出了集中质量阻尼弹性结构动力模型的显式差分法，数值稳定条件同中心差分法。

In order to get the validity methods to solve the nonlinear rotor dynamics equations central difference Nemark-β and Runge-Kutta methods are employed to solve the Duffing system and cracked rotor system These systems responses of multi-period, quasi-period and chaos are studied.

为提高非线性转子动力学方程计算的准确度,分别采用中心差分法、Nemark-β法和Runge-Kutta法三种方法对Duffing方程和裂纹转子系统动力学方程的多周期、拟周期和混沌响应进行研究,获得不同数值方法对系统响应的影响。

We give a new set of block-centered finite difference schemes for the system of parabolic equations, and design two finite difference methods.

本文提出了一维、二维偏微分抛物方程组的块中心差分格式,利用该公式,设计了两种差分方法:(1)时间向后差分格式。

Centered difference method for numerical differentiation with noisy data;

带扰动数据的数值微分的中心差分法

Error Estimate of Block-Centered Finite Differences for 2-dimmensional Hyperbolic Equation

二维双曲问题块中心差分格式的误差估计

Error Estimate of Block-centered Finite Difference Method for a System of Parabolic Differential Equations

一类抛物型微分方程组块中心差分方法的误差估计

Study of SINS Alignment Based On Central Difference Kalman Filter

基于中心差分卡尔曼滤波的SINS初始对准研究

By the example, it was proved that diffusion of error from single point subdomain integration is more slow than central finit difference.

算例也表明了单点子域积分法具有比中心差分法误差扩散慢的特点。

Analysis and Compensation of Equivalent Phase Center Error in MIMO-SAR

MIMO-SAR等效相位中心误差分析与补偿

Error Analysis of Mental Test in Evaluation of Academician’s Mental Health;

心理测验在大学生心理健康评价中的误差分析

Error analysis of mental test in evaluation of academician s mental health;

大学生心理健康评价中的心理测验误差分析

Analysis and Dealing with the Clamping Eccentric Error of Center-Hole-Grinder;

中心孔磨床上装夹偏心的误差分析及处理

Research on Emotional Factors and Countermeasures for High School Sports Inferior Students;

高中体育差生的情感心理因素分析及对策研究

A Psycholinguistic Study of the Learners Individual Differences in Foreign Language Teaching;

外语教学中学习者个别差异的心理语言学分析

The Psychological Differences Between Junior High Students and Senior High Students in Getting along with Others and Suggestions on How to Guide Them Respectively;

初高中生人际交往心理问题差异分析及建议

Analysis and Control of Geometric Errors for Machining-center Based on CAD/CAM Technology;

基于CAD/CAM技术的加工中心误差分析与控制

Factor Analysis and Strategies of Psychological Differences between Urban and Rural Secondary School Students;

城乡中学生心理差异的成因分析及对策

Analysis on Psychological Factors Causing Cognitive Bias in Editing;

编辑审稿过程中出现认知偏差的心理因素分析

Analysis of differences between brachial arterial blood pressure and central aortic pressure

肱动脉袖带血压与中心动脉血压差异的分析

An RBF Neural Network Classifier with Centers,Variances and Weights Directly Determined

中心、方差及权值直接确定的RBF神经网络分类器

Error Analysis and Optimization of Center-Deflection-Measure Data

中心偏测量数据的误差分析及数据优化措施