【摘要】 本文在非线性最小二乘拟合中提出了参数分组约束代化方法，并以水汽的双线光声光谱分析为例显示了该方法的高效可靠性．更多还原

【Abstract】 The method of parameter constrained optidrization by group was presented in the nonlinear least square fitting. Moreover, its superiority of fast convergence and high reliability was demonstrated in the analyzing of the double-line photoacoustic spectra of water vapor.更多还原