INFLUENCE OF STATISTICS OF ERRORS AND INITIAL PARAMETERS ON ROBUST ESTIMATION
Li Jinlong 1) ; and Xu Junyi 1,2)
1)Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 4500522)Xi’an Information Technique Institute of Surveying and Mapping, Xi’an 710054
Abstract In robust estimation，it is very difficult to obtain robust initial parameters, so a new method which estimate initial parameters based on initial equivalent weights of high breakdown point is proposed to more effectively reject the effcets of gross errors. It is demonstrated that initial parameters estimated with the proposed method may have more reasonable equivalent weights. When the observations are seriously contaminated by gross errors, this method remains effective.
Key words ：
robust estimation
statistics of errors
initial parameter
a variance factor of unit weight
breakdown point
Received: 01 January 1900
Corresponding Authors:
Li Jinlong
Cite this article:
Li Jinlong ,and Xu Junyi. INFLUENCE OF STATISTICS OF ERRORS AND INITIAL PARAMETERS ON ROBUST ESTIMATION[J]. , 2010, 30(第3期): 96-99.
Li Jinlong ,and Xu Junyi. INFLUENCE OF STATISTICS OF ERRORS AND INITIAL PARAMETERS ON ROBUST ESTIMATION[J]. jgg, 2010, 30(第3期): 96-99.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I第3期/96
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