为提高噪声环境下椭圆类物体形状检测算法的稳定性与准确性，本文提出非线性数据拟合模型结合交叉参考迭代的新思路。
To solve the problem of ellipse - object - shape parameters detection in noise image, a new detection algorithm using nonlinear data fitting model and cross-reference iterative method is proposed.
根据调频函数模型，提出利用数据拟合的方法设计非线性调频信号。
According to the frequency modulation function mode, this paper proposes to design the nonlinear frequency modulation (NLFM) signal using the data fitting method.
利用这个数学模型对实验数据进行非线性拟合，拟合的相关系数高于0.99。
The mathematic model was adopted for nonlinear least-squares data fitting to process experimental data, and a high correlation coefficient excelling 0.99 was obtained.
浓度剖面的实验数据由非线性扩散方程的数值解进行拟合。
Numerical resolution of a non-linear diffusion equation was used to fit the experimental data.
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 least square method is popularly used in linear and non-linear regressions for data fitting and estimating model parameters.
用参数可分离非线性最小二乘拟合方法，根据少量测量数据较准确地求得了太阳电池双指数数学模型。
Solar cell both exponent mathematical model can be obtained exactly using a few measurement data by the least squares fitting method that parameter can be separated.
根据实测的数据，采用一元线性、多元线性和非线性回归进行拟合，得到34个红海榄幼苗主要形态因子和生物量的回归模型。
Based on the data observed, 34 regression models on the morphological variables and biomass of the seedlings were set up using linear, multilinear and non linear regression.
为了用线性或非线性模型拟合纵向数据，需要确定一个合理的协方差结构。
It is necessary to make a reasonable covariance structure for longitudinal data so as to fit these data with linear or nonlinear models.
对系统采集的实验数据用曲线拟合的最小二乘法进行处理，完成实验数据的非线性矫正。
The experiment data collected by system is be disposed by Least square method that the contours fit, which adjust the non-linearity of experiment data.
通过数据分析和线性或非线性拟合得到了3种疲劳裂纹扩展速率的数学描述公式。
Three mathematical description formulas of FCGR were obtained by data analysis and linear fit or nonlinear.
数据拟合是数理统计学中的一个永恒话题，在实际工作中我们最常用的拟合方法是回归分析，其中包括线性回归和非线性回归。
Data smoothing is a perpetual topic in mathematical statistics. In practice we usually use regression to smooth data, including linear regression and nonlinear regression.
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。
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.
模型的直接参数通过实测数据获得，隐含参数利用非线性最小二乘法拟合反求获得。
Direct parameters were attained from the measurement data, and hidden parameters of the model were calibrated using the generalized least squares method.
通过对试验数据的非线性拟合，提出了表征两种沥青发泡性能的衰退方程，其参数有明确的物理意义。
We introduced the way of nonlinear curve fitting to analyzing the experiment data by the Origin software.
还实际测试了两种国产泡沫塑料材料的静态应力应变关系，根据上述原则和实测数据建立了泡沫塑料包装衬垫的非线性弹性模型并拟合了模型参数。
The sta- tic relation between stress and strain of two kinds of foamed plastics material made in China are measured. The nonlinear elastic models of foamed …
并通过对动态测量中某霍尔位移传感器位移-电压数据进行了坏值剔除和三次多项式非线性拟合，表明动态测量中传感器数据的非线性处理方法。
The curve of a Hall displacement sensor is obtained by polynomial fitting. The method of data erasing and curve fitting can be applied in processing the data of sensor in dynamic measurement.
并通过对动态测量中某霍尔位移传感器位移-电压数据进行了坏值剔除和三次多项式非线性拟合，表明动态测量中传感器数据的非线性处理方法。
The curve of a Hall displacement sensor is obtained by polynomial fitting. The method of data erasing and curve fitting can be applied in processing the data of sensor in dynamic measurement.
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