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基于改进最小二乘配置法的GPS高程拟合

发表时间:2011-09-30  浏览量:1581  下载量:558
全部作者: 李水兵
作者单位: 国网电力科学研究院;南京南瑞集团公司
摘 要: 采用变异函数来确定最小二乘配置拟合过程中信号间的协方差,建立改进的最小二乘配置GPS高程拟合模型,并对一局部GPS水准网的高程进行拟合计算。通过比较改进的最小二乘配置法与多项式曲面、多面函数和Kriging法等拟合模型,证明改进的最小二乘配置法进行GPS高程拟合的方法是可行且有效的。
关 键 词: 大地测量技术;高程异常;高程拟合;最小二乘配置;变异函数
Title: GPS elevation fitting based on improved least squares collocation
Author: LI Shuibing
Organization: State Grid Electric Power Research Institute; NARI Group Corporation
Abstract: This paper used the semivariable function to solve the problem of the covariation, established the model of GPS elevation fitting based on improved least squares collocation, and applied in a local area. Through comparison with the polynomial surface, the polyhedral function, Kriging interpolation function, the feasibility and effectiveness of the model of improved least squares collocation for GPS elevation fitting was proved.
Key words: geodetic technique; elevation abnormality; elevation fitting; least squares collocation; semivariable function
发表期数: 2011年9月第18期
引用格式: 李水兵. 基于改进最小二乘配置法的GPS高程拟合[J]. 中国科技论文在线精品论文,2011,4(18):1702-1706.
 
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