摘要
给出了求解非线性最小二乘问题的一种新算法.算法利用延拓法来研究拟合曲线所需要求解的非线性方程组以保证大范围收敛性;再利用斯蒂芬森加速技术来提高收敛速度;最后数值实验的结果表明算法有效可行.
In order to guarantee the global convergence, a new algorithm for solving nonlinear least squares problems was given. The algorithm used continution method to study nonlinear equations of fitting curve, and used the Stephenson acceleration techniques to improve the convergence speed. The results of numerical ex- periments show that the proposed algorithm is effective and feasible.
出处
《佳木斯大学学报（自然科学版）》
CAS
2012年第4期590-591,594,共3页
Journal of Jiamusi University：Natural Science Edition
基金
黑龙江省教育厅科学研究项目(11553114)
关键词
非线性最小二乘
延拓法
斯蒂芬森加速
nonlinear least square
continution method
Steffensen accelerating
