GPS水准单一模型和综合模型精度比较  

Accuracy comparison between single models and integrated models of GPS leveling

作　　者：袁德宝[1] 崔希民[1] 王果[1] 王圣尧[1] 邱亚辉[1] 纪银晓[1] 

机构地区：[1]中国矿业大学地球科学与测绘工程学院,北京100083

出　　处：《测绘科学》2011年第5期55-56,48,共3页Science of Surveying and Mapping

基　　金：国家重点基础研究发展计划(2007CB209400);教育部新世纪优秀人才支持计划(NCET-07-0798);中央高校基本科研业务费专项资金资助

摘　　要：GPS水准模型在很大程度上决定着拟合精度的高低,采用不同的模型,对GPS水准拟合的情况将产生不同的影响,因此,模型的选取对GPS水准来说是个关键问题。本文分别选取了GPS水准单一模型和综合模型,借助于MATLAB将某矿区的实测数据进行拟合,并对拟合结果进行比较。拟合结果表明:综合模型的精度和可靠性高于单一模型,能更好地代替水准测量。To a large extent, GPS leveling model determines the fitting precision. Different models fit the situation of the GPS leveling with different results, therefore, the selection of the GPS leveling model is a key issue. In this paper, the single model and the integrated model were selected, by means of MATLAB, experimental data of a mine area was fitted and fitting results were compared. The fitting results showed that the precision and reliability of integrated model were better than single model, and the former one could be used instead of leveling better.

关 键 词：高程异常 GPS水准 模型 精度 

分 类 号：P228.4[天文地球—大地测量学与测量工程] P224.1[天文地球—测绘科学与技术]