| WGS-84与地方坐标系转换参数的优化选择 |
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| 引用本文： | 孙晓光.WGS-84与地方坐标系转换参数的优化选择[J].测绘与空间地理信息,2007,30(2):152-154. |
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| 作者姓名： | 孙晓光 |
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| 作者单位： | 辽宁省基础地理信息中心,辽宁,沈阳,110034 |
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| 摘 要： | 针对GPS动态RTK测量中WGS-84与本地坐标系转换参数的选择进行研究。首先根据稳健估计方法对控制点的精度进行评定,剔除含有粗差的控制点。然后利用概率统计理论对转换参数的优化选择进行分析,确定转换参数最优值。为便于实际应用,编写了转换参数优化选择软件,并将此软件的计算结果应用到实践中,取得较好结果,为证明该方法的可行性提供可靠依据。
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| 关 键 词： | GPS RTK 坐标系 转换参数 稳健估计 优化选择 |
| 文章编号： | 1672-5867(2007)02-0152-03 |
| 修稿时间： | 2006年12月28日 |
Optimal Selection of Transition Parameters between WGS- 84and Local Coordinate Systems |
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| SUN Xiao-guang.Optimal Selection of Transition Parameters between WGS- 84and Local Coordinate Systems[J].Geomatics & Spatial Information Technology,2007,30(2):152-154. |
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| Authors: | SUN Xiao-guang |
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| Abstract: | This paper studied the selection of transition parameters between WGS-84 and local coordinate systems in GPS dynamic RTK surveying.First,the precision of reference points are analyzed by solidity estimate,and the reference points with coarse error are deleted.The optimal selection of transition parameters have been analyzed by using probability statistics theory,ascertained the transition parameters' optimum value.We have compiled its program for the application of practical work,and put the result of program into the experiment,obtained a good result,which can provide evidence for proving the feasibility of this method. |
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| Keywords: | GPS RTK coordinate system transition parameter solidity estimate optimal selection |
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