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《Science of Surveying and Mapping》 2008-05
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Discussion of the uniformity of the three adjustment models

ZHANG Hui-zhan①,DU Zhi-xing①,WANG Xin-zhou②,TAO Qiu-xiang①(① Shandong University of Science and Technology,Qingdao 2665110,China;② Wuhan University,Wuhan 430072,China)  
In the paper,classical surveying adjustment,free network adjustment and generalized ridge parameter are derived based on the principle of Tikhonov regularization method.It is demonstrate that they are,respectively,a specific expression of Tikhonov regularization method after analyzing the relation between them and their coefficient array's mult-collinearity.As a result they are expressed with a unified mathematical model.
【Fund】: 国家自然基金(40474005);; 山东省泰山学者建设工程专项经费资助项目(TSXZ0502)
【CateGory Index】: P207.2
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