邹贤才, 李建成. 最小二乘配置方法确定局部大地水准面的研究[J]. 武汉大学学报 ( 信息科学版), 2004, 29(3): 218-222.
引用本文: 邹贤才, 李建成. 最小二乘配置方法确定局部大地水准面的研究[J]. 武汉大学学报 ( 信息科学版), 2004, 29(3): 218-222.
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ZOU Xiancai, LI Jiancheng. A Local Geoid Determination Using Least-Squares Collocation[J]. Geomatics and Information Science of Wuhan University, 2004, 29(3): 218-222.
Citation: ZOU Xiancai, LI Jiancheng. A Local Geoid Determination Using Least-Squares Collocation[J]. Geomatics and Information Science of Wuhan University, 2004, 29(3): 218-222.
shu

最小二乘配置方法确定局部大地水准面的研究

A Local Geoid Determination Using Least-Squares Collocation

    摘要
  • 摘要: 从最小二乘配置方法的原理出发,描述了最小二乘配置法中经验协方差函数的确定方法。在此基础上,以我国西部高山地区为例,利用实测点重力数据、30"×30"数值地面模型和EGM96地球重力场模型,确定了该地区2.5'×2.5'大地水准面。

     

    Abstract: On the basis of the theory of least-squares collocation (LSC), the approach used to define a local covariance function is described.This paper selects a 6°×6°test area (30°N~36°N, 96°E~102° E)in western China, and carries out an experiment for local geoid determination by using LSC and combing terrestrial gravity data, 30"×30" digital terrain model and EGM96 geopotential model.The 2.5'×2.5' gridded geoid heights are obtained.

     

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