首页 | 本学科首页   官方微博 | 高级检索  
     

病态总体最小二乘的混合正则化算法
引用本文:孙同贺,闫国庆. 病态总体最小二乘的混合正则化算法[J]. 大地测量与地球动力学, 2017, 37(4): 390-393
作者姓名:孙同贺  闫国庆
摘    要:病态问题在大地测量数据处理中广泛存在,单一的Tikhonov正则化算法会造成求解过度平滑,而TV正则化可以更有效地抵抗噪声。本文将Tikhonov正则化和TV正则化两种方法有效结合,推导了具体求解公式并给出相应迭代算法。计算表明,本文提出的方法在处理病态总体最小二乘问题上稳定性更高。

关 键 词:病态总体最小二乘  Tikhonov正则化  总变差正则化  混合正则化  

A Hybrid Regularization Algorithm to Ill-Posed Total Least Squares
SUN Tonghe,YAN Guoqing. A Hybrid Regularization Algorithm to Ill-Posed Total Least Squares[J]. Journal of Geodesy and Geodynamics, 2017, 37(4): 390-393
Authors:SUN Tonghe  YAN Guoqing
Abstract:Single Tikhonov regularization tends to over-smooth solutions. TV regularization effectively resists noise. Therefore, in this paper, we regularize the ill-posed problem by incorporating both Tikhonov and TV regularization, and give the iterative algorithm. Two numerical experiments are carried out to demonstrate the efficiency and performance of the hybrid regularization method.
Keywords:ill-posed total least squares  Tikhonov regularization  total variation regularization  hybrid regularization  
本文献已被 CNKI 等数据库收录!
点击此处可从《大地测量与地球动力学》浏览原始摘要信息
点击此处可从《大地测量与地球动力学》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号