With the nonlinear leastsquaresfit between measured spectra and calibration spectra, standard gas concentrations of co at different temperatures are obtained.
将合成校准光谱和实验测得的光谱进行非线性最小二乘拟合,得到了不同温度下标准气体CO浓度。
2
Based on the locally kernel weighted leastsquaresfit of the nonparametric regression models, this paper presents the nonparametric testing method for nonlinear cointegration.
本文基于非参数回归模型的局部核权最小二乘法提出变量间非线性协整的一种非参数检验方法。
3
There two extracting strategies in this thesis: (1) Transform the device characteristics equation to linear form and use "leastsquaresfit" method to extract relevant parameters.