In this paper two reasons-the deviation of the data from the origin and the size of the data-causing the ill-conditioned normal equations in the least square fitting of a polynomial are discussed.
讨论了最小二乘多项式拟合中引起正规方程组病态的两个重要原因：节点对原点的偏离程度和节点坐标的数量级。
The ionization of one dimensional model atoms in ultra intense laser fields has been studied by solving time dependent Schrdinger equation using the least square fitting and the Runge Kutta methods.
利用最小二乘法和龙格库塔方法求解含时薛定谔方程，研究了一维原子模型在超强激光场中的电离。
Substantially, this method is a smoothing process resulted from the mathematical skills of weighted least square fitting, combining with the iterative method for correct indexing.
其方法实质上是加权最小二乘拟合与叠代修正指标化的技巧相结合的平滑过程。
The algorithm is polynomial curve fitting based on least square approximation. The experimental result shows its performance is more effect than that of the piecewise linear algorithm.
该算法是在最小二乘意义上的多项式曲线拟合，实验结果表明，其校正效果明显优于分段线性校正算法。
Further, the least square method has been applied to get linear curve fitting and the SDL7432 linear measurement curve has been given.
利用最小二乘法对测量数据进行了线性曲线拟合，得出了SDL7432的线性测量曲线。
On the basis of short straight-line fitting, this dissertation USES the least-square method of curve matching to discern circle and straight line.
通过对离散点进行短线段拟合的基础上，再利用曲线拟合的最小二乘法对圆和直线进行二次拟合。
Objective to investigate the possibility of application of selective least square fitting method to evaluate the respiratory effort of sedative patients mechanically ventilated.
目的探讨应用选择性最小平方拟合法无创性评估机械通气病人镇静时呼吸努力程度的可能性。
The data for the measurement can use direct least square fitting to solve the curvature of the workpiece.
对于测量的数据采用直接最小二乘拟合，从而可以解算出工件的曲率。
Fitting a curve for an experimental energy spectrum of plasma particles with the least square method, a square error sum between the fitted curve and experimental spectrum data is usually minimized.
用最小二乘法拟合等离子体粒子能谱实验数据时，通常使拟合函数与实验能谱数据之间的误差平方和极小化。
The thermal diffusivity of the specimen is determined by a new nonlinear least-square fitting algorithm.
用一种新的非线性最小二乘拟合算法确定出了试样的导温系数。
In this paper a new algorithm based onFourier modal estimate is proposed to reconstruct the original wavefront by use of least-square fitting.
我们提出基于傅里叶模式估计的二维波前重建算法，利用最小二乘拟合原理，可以计算出待测波前的傅里叶变换系数，从而恢复原始波前。
The least - square method applied to CCD graph fitting is analysed, and a further solution of the problematic point in the application is given.
分析了最小二乘拟合法在CCD采样曲线拟合中的应用，对应用中存在的问题及其解决方法做了进一步的探讨。
Both the rational functions and the least square algorithm of fitting of data are used to construct a new method of fitting of curve and surface.
把有理函数引入离散数据拟合方法中，将有理函数与数据拟合的常用方法——最小二乘法相结合，给出了一种新型的数据拟合工具。
Both the wavelet functions and the least square algorithm of fitting of data are used to construct a new method of fitting of curve and surface.
本文把小波函数引入离散数据拟合领域，将小波函数与数据拟合的常用方法——最小二乘法相结合，给出了一种新型的数据拟合工具。
In this paper, moving least square (MLS) approximation is applied to simulate the complete characteristic curves of reversible pump turbine based on the surface fitting.
本文在基于曲面拟合的水泵水轮机全特性曲线的变换新方法的基础上，将移动最小二乘近似应用于对全特性的曲面拟合。
Multivariable equation set fitting method is derived on the basis of least square method principle.
根据最小二乘法的求解原理，建立了一种适用于多变量方程组系数参数的拟合算法。
An enhanced image is finally reconstructed from the target gradient field by least square fitting.
最后采用最小二乘拟合从目标梯度场重建出增强后的图像。
It is necessary to solve a system of nonlinear equations for fitting the curve of nonlinear function by use of the least square method.
非线性函数的最小二乘法拟合曲线需要求解一个非线性方程组。
The error sources and their influences to the measurement results are also discussed. It has been shown, that the satisfied results can be achieved by using least square fitting method.
计算结果表明，用分段多项式最小二乘法拟合计算M F D，可以取得满意的计算精度。
Then the fitting relationships between the longitudinal wave velocity of rock masses and deformation moduli are established. Method of least square regression is used for deformation data processing.
用刚性圆形承压板法进行岩体变形试验，建立了岩体纵波波速与变形模量的拟合关系，用最小二乘回归法处理变形数据。
The least square method is popularly used in linear and non-linear regressions for data fitting and estimating model parameters.
最小二乘法在化工中广泛用于数据拟合的线性和非线性回归及模型参数估值。
The method of fitting points on the profile of radial shaving cutters by using the least square method is yielded, and a simple expression to build the gear profile is also presented.
提出一种用最小二乘法拟合刀具齿面上离散点的齿面拟合方法，给出了齿面的简单表达式。
Based on the results of the edge anchor, several segments of the height data are selected and linear polynomial fitting are done using least square approximant on these segments separately.
根据台阶边缘检测结果，选取部分采样点数据，用最小二乘法进行直线拟合。
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.
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 the least square method, the technique of numerical fitting is merged into interval-valued fuzzy inference, and a new bidirectional fuzzy inference algorithm is put forward.
将数值拟合技术引入到区间值模糊推理中，提出一种基于数值拟合的区间值模糊双向推理算法。
Firstly, the error of fit must be defined for nonlinear least-square fitting of generalized geometry model. Then the nonlinear optimization algorithm can be used to obtain the optimum solution.
对于一般几何模型的非线性最小均方误差拟合，首先必须定义拟合误差，然后采用非线性最优化方法求解最小误差意义下的最优解。
Near infrared diffuse reflectance spectroscopy with partial least square fitting (NIRSPLS) was applied for nondestructive quantification of the content of Pyrazinamide in Pyrazinamide tablets.
应用偏最小二乘法结合近红外光谱法（NIRSPLS）对吡嗪酰胺片中吡嗪酰胺的含量进行了非破坏性定量分析。
Concerning the low accuracy and easily being interfered by noise of ECG diagnosis of ST-segment, a ST-segment detection algorithm based on least-square polynomial fitting was proposed.
针对目前心电图s T段诊断准确度不高，容易受到噪声干扰的情况，提出了一种基于最小二乘多项式拟合的ST段形态识别算法。
To solve the non-linear problem of a biosensor, the least square method and the optimum technique have been applied to build a mathematical model to evaluate the optimum fitting straight.
针对苯丙氨酸解氨酶生物传感器非线性特性，依据最小二乘法理论，采用最优化技术，建立了最佳拟合直线的数学模型，并给出基于可编程控制器的数据拟合程序。
The Application of the Method of Least Square of Data Fitting in Physics Test;
在工程数据线性拟合时，宜选用线性最小二乘法。
应用推荐