Based on the GPS broadcast ephemeris parameters, the nonlinear least square fit algorithm of broadcast ephemeris parameters was developed, and the relevant calculation formulas were derived. 基于GPS广播星历参数,研究了导航卫星广播星历参数的非线性最小二乘拟合算法,并推导了相应的计算公式。
Least Square Method Fit Solutions for Two Elastic Contact Rough Surfaces 两弹性接触粗糙表面的最小二乘法拟合解
The application of the least square polynomial fit method in the wavelength calibration of the Optical multichannel analyzer with a CCD detector is investigated. 研究了最小二乘拟合方法在CCD型光学多通道分析仪波长标定中的应用。
Adaptive parameters in a polynomial, which is a solution of the Glad-Shafranov equation, are determined by a least square fit of the poloidal magnetic fields. 用最小二乘法可以确定GladShafranov方程解中的待定参数。
Using the least square method to fit the experimental data and get the correlative factors between the often used models and practical curves, the best rheology model is chosen in this paper. 利用最小二乘法对试验数据进行拟合,并求得各常用流变模式与实际曲线的相关系数,从而优选出最适合的流变模式。
On the basis of the registration parameters calculated with the model, we use least square method to fit the optimization parameters with multi registration points. 利用模型计算配准参数,并用最小二乘法达到用多个配准点拟合出最优参数解的目的。
A Computational Method on Nonlinear Least Square Fit 非线性最小二乘拟合的计算方法
The Determination of the Constitutive Equation of Arteries in Zero Stress State Using the Least Square Fit 用最小二乘法求零应力状态下动脉壁本构方程
With the view of the difficulty, an sub pixel edge detection method based on least square fit detecting is proposed. 针对微小型零件边缘检测的问题,提出一种基于最小二乘拟合的亚像素边缘检测方法。
The Least Square Fit Method in Optical Bistable Experiment 光学双稳性实验中的最小平方拟合方法
Secondly, data processing methods used in valve train dynamic experiment are analyzed in details. It shows that: ■ Least square fit method is better than digital filter used in eliminate acceleration sensor excursion. 然后,本课题对气门动态特性试验获得的气门加速度和气门升程信号进行数据处理方法研究。■采用最小二乘拟合方法消除气门加速度测量结果中包含的传感器漂移信号,其效果优于数字滤波方法;
Non-uniform B-spline interpolation model Considering good local precision of non-uniform B-spline and good global precision of least square fit method, the paper put forward the non-uniform B-spline least square interpolation model. 结合非均匀B样条函数良好的局部性质和最小二乘数据拟合方法良好的全局性质,提出了一种非均匀B样条最小二乘内插模型。
The total income of national economy and the amount of population are predicted with second-degree moving model and with the principle of least mean square fit error determining designated value N. 利用二次移动平均模型,引入均方拟合误差最小的原理确定出时段数N,对国民经济总收入、人口数量等项目进行了预测。
METHODS The accumulative release percent-time equation describing the release kinetics of two kinds of pellets and their combined capsule was deduced by non-linear least square model fit program and it was compared with the equation infered according to linear model fit. 方法采用非线性最小二乘法模型嵌合通用程序对各累积释放百分数进行模型嵌合,根据最小AIC值和最小偏差平方和原则,选择最佳释药动力学方程,并将结果与线性方程拟合结果比较;
A Hybrid Method of Least Square Fit and Interpolation Uesd in the Approximation of Air-to-Air Missile Launch Envelopes 空空导弹攻击区处理的拟合&插值法
This paper introduces the calculation of pressive strength against wind of aluminium-plastic window, in which the result of calculating is obtained by using the least square method fit formula. 根据最小二乘法原理求得建筑铝塑外窗抗风压强度的经验公式来计算其强度。
The comparison results show that the least square polynomial fit method can make the calibration more precise. 结论表明,用多次拟合比传统的线性近似结果更精确。
It shows that: ■ Least square fit method is better than digital filter used in eliminate acceleration sensor excursion. ■采用最小二乘拟合方法消除气门加速度测量结果中包含的传感器漂移信号,其效果优于数字滤波方法;
The defects of GM ( 1,1) model have been pointed out in this paper. And it has been improved by using least square approxi-mation to fit exponential curve. The exponential model is established, and the accuracy in practical application is quite high. 该文指出了GM(1,1)模型用于预测的不足之处,采用指数曲线拟合最小二乘法补充了GM(1,1)模型的不足,建立了指数模型,实际应用精度较好。
During the calibration of data by using five-hole probes a spline interpolation and least square fit are generally employed. For the calibration of curves by the use of identical probes the results of interpolation obtained by employing respectively the above-mentioned two methods may be quite different. 在使用五孔探针校准数据时通常采用样条插值或最小二乘法拟合,相同的探针校准曲线用这两种方法分别插值得到的结果有较大的差异。
By remembering the positions in foretime, we apply the improving least square method to fit curve, and calculate the tangent, then translate it to the direction of robot. 该方法通过对机器人历史位置的状态记忆,采用改进的最小二乘法,对位置信息进行曲线拟合,并以计算出的当前时刻点的切线方向,作为对方机器人的运动方向;
In programmable filter the method of designing the programmable filter is described here, and the Least Square Fit algorithm is applied to calibrate a series of parameter automatically. 在可编程滤波器模块中,详细介绍了电路原理和设计方法,采用最小二乘拟合算法,通过计算机实现滤波器的自动校准;
A computational method on nonlinear least square fit problem, which is often en-countered in engineering, is presented in this paper. 本文对工程中经常遇到的非线性最小二乘拟合问题提出了一个计算机算法,该方法共分两步:首先利用优选法求出非线性参数,然后计算线性参数。
Method of least square was adopted to fit the experiment curves and force, and displacement regression equations of metal rubber specimen were obtained with Matlab software. 采用最小二乘法对试验曲线进行了数据拟合,用Matlab编程计算得出了金属橡胶试件力位移回归方程。
And the Least Square Fit is applied to calibrate a series of parameters automatically. 采用最小二乘拟合算法,通过计算机实现滤波器的自动校准。
At the last, every grating plane equation can be approached with Least Square Fit Algorithm based all corresponding sample 3D points on it. ( 2) Modeling the conversion from Lab to CMY by using mathematic theory. 利用最小二乘法分别拟合出每个光栅平面的空间平面方程。(2)采用二元回归方法计算数学模型的平面方程系数并建立数学转换模型。
The thesis bring forth the least square method to fit the slope k of the equation of the lane, through the analysis of images from the time vehicles are on the road, to judge the algorithm of path direction under the connection of slope. 通过对车辆在道路上运行时获得的图像的分析,提出了用最小二乘法来拟合车道线所在方程的斜率k,根据斜率的关系来判断道路走向的算法。
The analytic expression of the surface tension and the temperature was derived by the non-linear least square fit to the data. Surface tension of distilled water decreases with the increasing temperature. The approximate relation between surface tension and temperature is linear. 测定了不同温度下蒸馏水的表面张力,用最小二乘法对实验数据进行拟合,得出了表面张力和温度的解析关系,表面张力随着温度的增加是递减的,并和温度呈近似线性关系。
Based on the result of the road area detection, the road edge detection algorithm uses the least square method to fit the road edge. 基于道路区域检测结果,道路边线检测算法采用多项式模型,利用最小二乘法对道路边线进行拟合。
After that, this paper used the least square method to fit the rotational blurred center and rotational blurred angle. 接着本文使用最小二乘法拟合出旋转运动模糊中心和模糊角度。