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《Journal of Geodesy and Geodynamics》 2012-01
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SEMIPARAMETRIC COMPENSATION METHOD FOR MODEL ERROR OF DEFORMATION ADJUSTMENT SYSTEM

Gao Ning1,2),Cui Ximin1),Gao Caiyun2),Wang Guo1) and Zhao Wandong1) ( 1)College of Geoscience and Surveying Engineering,CUMT,BeiJing 100083 2)Department of Survey & Urban Spatial Information Engineering,Henan University of Urban Construction, Pingdingshan 467044)  
In deformation data processing,due to various approximations existing in the process of building model,it is inevitable that the model errors exist in the adjustment system.We discusses some theoretical problems affecting parameters estimation,proposes that model error can be solved with semiparametric penalized least squares and discusses the choice of regular matrix R and smoothing parameter α affecting the forecasted results.Finally,an adjustment problem in dam safety monitoring is used to test the method and the semiparametric model,autoregressive model,grey model and grey wavelet analysis method are compared with each other.The results demostrate that the model errors can be compensated correctly by semiparemetric method.
【Fund】: 国家自然科学基金(41071328);; 国家重点基础研究发展规划(973)项目(2007CB209400);; 教育部新世纪优秀人才支持计划资助项目(NECT-07-07098)
【CateGory Index】: O212.1;P207.2
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Chinese Journal Full-text Database 9 Hits
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