期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
SPECTRAL DECOMPOSITRION FORMULA FOR REGULARIZATION SOLUTION OF ILL-POSED EQUATION
1
作者 ShenYunzhong HsuH.T. 《大地测量与地球动力学》 CSCD 2003年第B12期74-78,共5页
This paper discusses the regularization solution of ill posed equation with the help of its spectral decomposition formula. It shows that regularization can filter the influence of the high frequency errors which are ... This paper discusses the regularization solution of ill posed equation with the help of its spectral decomposition formula. It shows that regularization can filter the influence of the high frequency errors which are very sensitive to the parameters to be estimated, and gives a complete derivation of the spectral decomposition formulae of least squares adjustment, rank deficient adjustment and the regularization solution of ill posed equation. It also shows the equivalence between the trace of the mean squares error and the expectation of the secondnorm of estimated parameter’s total error. 展开更多
关键词 不确定的等式 规则化方法 光谱分析方程式 规则化的参数 参数计算
在线阅读 下载PDF
不适定方程正则化算法的谱分解式 被引量:31
2
作者 沈云中 许厚泽 《大地测量与地球动力学》 CSCD 2002年第3期10-14,共5页
从观测方程系数矩阵的谱分解着手探讨不适定方程的正则化算法。利用谱分解式阐明了正则化的主要作用是平滑对参数估值比较敏感的观测误差的高频分量 ,完整给出了最小二乘平差、秩亏平差和病态方程正则化解的谱分解公式 。
关键词 正则化算法 不适定方程 谱分解式 观测方程系数矩阵 最小二乘平差 秩亏平差
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部