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《Editorial Board of Geomatics and Information Science of Wuhan University》 2005-09
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A Method for Resolving Ill-conditioned Problems——Two-Step Solution

WANG Zhenjie~1 OU Jikun~2 LIU Lintao~2(1 School of Architectural Engineering, Shandong University of Technology, 12 Zhangzhou Road, Zhangdian District, Zibo 255049, China)(2 Institute of Geodesy and Geophysics, Chinese Academy of Sciences, 174 Xudong Road, Wuhan 430077, China)  
In this paper, a resolution methods of ill-posed problems based on the Tikhonov regularization theory is studied, and a method of two-step solution is proposed. The purpose of two-step solution is to choose a more appropriate regularizer than that of the ridge estimation. This paper utilizes L-curve method to determine the regularization parameter in the (above) two computation steps.
【Fund】: 国家自然科学基金资助项目(40474009);; 中国科学院百人计划资助项目。
【CateGory Index】: P207.2
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