The fine structure parameters were calculated using a least-squares fitting procedure.
用最小二乘法拟合技术严格地计算了精细结构参数。
In the program, three kinds of nonlinear least-squares fitting methods were supplied for processing the complex positron lifetime spectrum.
为处理复杂的正电子寿命谱，本程序可提供三种非线性最小二乘拟合方法。
The comparison among various methods of parameter estimation shows that the least-squares fitting method in the time domain is more accurate one.
各种参数估值方法的比较表明，时间域最小二乘拟合法较为精确。
The algorithms can be classified into two categories: a closed form solution and an iterative least squares fitting.
目前算法可以分成两类：即闭形解和最小二乘迭代拟合。
The results show that increasing the number of least squares fitting terms and reasonable selection of digital image correlation subset size improve the accuracy of calculated stress intensity factor.
结果表明，增加最小二乘拟合项次和合理选择数字图像相关计算子区域和步长大小可以提高应力强度因子计算精度。
Parameter estimation in dynamical systems, example : least squares fitting of rate constants from batch reactor data, parametric sensitivity analysis.
动态系统之参数估算，范例：利用批式反应器数据做速率常数之最小平方配适，参数灵敏度分析。
The principle of the digital image correlation method was described, and the relation between the crack tip displacement and the stress intensity factor was deduced using least squares fitting.
介绍数字图像相关方法的基本原理，建立数字图像相关方法中位移场与裂纹尖端应力强度因子之间的关系。
The principle of the digital image correlation method was described, and the relation between the crack tip displacement and the stress intensity factor was deduced using least squares fitting.
介绍数字图像相关方法的基本原理，建立数字图像相关方法中位移场与裂纹尖端应力强度因子之间的关系。
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