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《Engineering of Surveying and Mapping》 2010-04
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Study on the height errors based on the penalized least square of natural spline

WANG Shou-chun,WANG Chang-yu,WANG Song-qing,MI Jing-yue,AN Li-li(Tianjin Hydraulic Research Institute,Tianjin 300061,China)  
Based in the penalized least square estimation of nonparametric natural spline,take the difference of GPS Height and Leveling Height as observed values,and get the adjusted value whose accidental error v have been reduced.Then correct the data of GPS Height with the adjusted value,thus a better result could be obtained.Finally,this theory is proved effective by the data of a river surveying.
【CateGory Index】: P207.1
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