附有病态约束反演问题的岭估计法

来源 :武汉大学学报(信息科学版) | 被引量 : 15次 | 上传用户:q5108947
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
提出了处理附有病态约束矩阵的等式约束反演问题的岭估计解法,推导了相应的求解公式及均方误差评定精度的方法,给出了确定附有病态约束矩阵的等式约束反演中岭参数的岭迹法、广义交叉核实法和L曲线法。算例比较了三种确定岭参数的方法在处理附有病态约束矩阵的等式约束反演问题中的优缺点,并与截断SVD法进行了对比分析。
其他文献
基于概率运动估计的超分辨算法能克服传统超分辨率方法过分依赖于准确运动估计的缺点,为了改善其重建效果,通过分析图像的局部结构模式,给出了局部空域活跃度的定义表征图像的局部结构特征,设计了形状、尺度自适应的非局部空时邻域窗口函数,进而提出了一种结构保持的超分辨率自适应重建算法。实验结果显示,本文方法具有更好的重建性能。
期刊
Stable isotopes of atmospheric water vapor reveal rich information on water movement and phase changes in the atmosphere. Here we presented two nearly continuous time-series of δD and δ18O of atmosphe
期刊
Research on the optical characteristics of water color constituents in Chagan Lake of Jilin Province,Northeast China was carried out in order to investigate the variability of the spectra absorption p
期刊
The evolutionary relationships and taxonomic position of two marine planktonic bacterial strains BSw20211 and BSw10014,isolated from the Canada Basin and from the Southern Ocean,respectively,were dete
期刊
A psychrophilic bacterium strain 547 producing cold-adaptive alkaline protease was isolated from the deep sea sediment of Prydz Bay,Antarctica.The organism was identified as a Planomicrobium species b
期刊
The 16S and 18S ribosomal ribonucleic acid genes of microbial organisms collected from the contrasting environments (temperature,salinity,silicate,phosphate and nitrate,p <0.05) of the inner and outer
期刊
Surface meteorological observations have been carried out at the Great Wall station (GW) and Zhongshan station (ZS) from 1984 to 2008 and from 1989 to 2008 respectively.The variation in mean air tempe
期刊
The Antarctic and Arctic are sensitive to global climate change;therefore,they are key regions of global climate change research.This paper,the progress in scientific investigations and research regar
期刊
The heights of automatic weather station (AWS) sensors over the Antarctic ice sheet are nominal and change with snow accumulation or ablation.Therefore,the measured data may not be used directly.In th
期刊
Thermodynamic processes of a system involving a floe and a small lead in the central Arctic were investigated during the ice-camp period of the third Chinese National Arctic Research Expedition from 2
期刊