本文提出一种整体数值微分方法。
In this paper, a method of global numerical differentiation is given.
提出一种基于数值微分的图像融合方法。
This paper proposes an image fusion method based on numerical differentiation.
利用所得到的结果，分析了数值微分法和经验公式的计算精度。
By use of the result, the calculating precision of numeric differential method and empirical formula is analyzed.
数值微分和积分部分将有较深入讨论，并强调误差和收敛性分析。
Numerical differentiation and integration is covered in depth, with particular emphasis on the error and convergence analysis.
基于模拟的CHAMP卫星观测数据，分别用数值微分法和能量守恒法恢复50阶次的重力位系数。
Numerical differential method and energy balance approach are applied respectively to recover the geopotential coefficients until 50 degree based on the simulated observation datum of CHAMP.
从建立观测方程的角度来说，主要研究了三种恢复地球重力场的方法：(1)数值微分法，(2)能量守恒法，(3)数值积分法。
Three methods for gravity field recovery are mainly studied from the views of observation equation, (1) numerical differential method, (2) energy balance approach, (3) numerical integration method.
特征提取是葡萄干等级检测的基础，该文在研究极惯性矩计算长短轴方法的基础上，提出一种利用数值微分法进行长短轴检测的新方法。
Based on studying the way of polar moment of inertia, a new method of major and minor axis detecting by DDA was provided.
本文利用微分方程的数值解法对时间序列建模预测作了新的尝试。
In this paper, the numerical solution of differential equation is employed to establish the forecasting model of the time series.
本文利用微分方程的数值解法对时间序列建模预测作了新的尝试。
In this paper a new method of modeling forecasting is given for the time series by using the numerical solution of differential equation.
这将是对偏微分方程数值分析方法的新的重要尝试。
This is a important attempt for the numerical analysis methods of PDEs.
导出的非线性微分方程存在解析积分，从而得出转体运动的一般规律，计算结果与数值积分结果相一致。
The general characteristics of the turning motion are obtained, and the results of the analytic calculation agree with those of numerical integration.
区域分解算法是在并行机上求解偏微分方程数值解的一种方法。
The domain decomposition is a numerically approximating solution to partial differential equations on parallel computers.
这类方程组常在主要与用离散数值方法解微分方程有关的实际应用中提出来。
This kind of systems frequently arises in practical applications mainly related to solving differential equations by discrete numerical methods.
类似的方法还可以用在其它类型的偏微分方程数值解中。
Similar method may be applied in other types of partial differential equations.
谱方法是微分方程数值求解的重要方法之一。
Spectral method is one of important numerical method for solving differential equations.
本文基于Gear方法对齿轮系统非线性动力学微分方程进行了数值计算分析。
Based on gear method, this paper presents the numerical calculation method for solving dynamics differential equations of gear systems.
将小波配置法与广义能量积分相结合，提出了一种求解非线性偏微分方程的高精度数值方法。
A high accuracy algorithm for numerical solution of nonlinear partial differential equation (PDE) is suggested combining wavelet collocation method with generalized energy integral.
依据光子传输的扩散性，用有限元法导出光子传输扩散偏微分方程的数值解。
According to the diffusibility of the photons transmission, numerical solution of photon transmission partial differential equation was deduced with finite element.
应用集总电感元件的传输线建模方法(TLM)构造了一种基于数值求解微分方程的数字仿真算法。
This paper presents a numerical simulation algorithm based on numerically solving differential equation system by means of the Transmission Line Modeling (TLM) for lumped inductor.
我们知道有限元方法以及辛算法和多辛算法是解偏微分方程数值解的重要方法。
We all know that both finite element method (FEM), symplectic algorithm and multi-symplectic algorithm are powerful tools to solve partial differential equations numerically.
提出求解常微分方程的一种新的数值方法——解析离散法。
A new numerical method, analytical discrete method, for solving ordinary differential equations is proposed.
精细积分法是求解常微分方程的一种成熟的数值算法。
Time precision integration method is a mature numerical algorithm to solve the ordinary differential equation.
本文利用微分方程的数值解法对时间序列建模预测作了新的尝试。文中用实例给以说明。
In this paper a new method of modeling forecasting is given for the time series by using the numerical solution of differential equation. A practical example is also given.
对于整数阶常微分方程的数值解法，如欧拉法、线性多步法等都已有较完善的理论。
Numerical method of integral order ordinary differential equation, for example, Euler method, linear multiple step method, and so on, has had quite perfect theories.
本文给出了延迟微分方程数值解的稳定性分析。
This paper deals with the stability analysis of numerical methods for the solution of delay differential equations.
研究用微分方程数值解法——线性多步法替代神经网络的学习算法。
Training neural networks by using the linear multi-step method is studied, which is a classical numerical method for differential dynamics.
提出对求解常微分方程的各种数值算法，可以建立与之相协调的多时次差分格式。
In this paper, a harmonized multi time difference scheme is established, which can be easily constructed on any numerical difference scheme of ordinary differential equations.
但是传统的微分等价递归算法精度低，并且利用数值差分来求解等价失效模式，计算量大。
But its computational accuracy is low, and the computational quantity is large when numerical difference is used to solve the equivalent failure mode.
采用偏微分数值模型，使用热解界面预估循环迭代的方法，对存在可变残留层材料的热解过程进行了详细研究。
The paper does an in-depth research on the numerical model of pyrolysis process of the materials with volatile residual layer by using pre-evaluation iteration method.
采用偏微分数值模型，使用热解界面预估循环迭代的方法，对存在可变残留层材料的热解过程进行了详细研究。
The paper does an in-depth research on the numerical model of pyrolysis process of the materials with volatile residual layer by using pre-evaluation iteration method.
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