| 空间直角坐标系统转换的抗差算法研究 |
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| 引用本文： | 倪飞,崔桂官. 空间直角坐标系统转换的抗差算法研究[J]. 海洋测绘, 2011, 31(6): 28-30 |
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| 作者姓名： | 倪飞 崔桂官 |
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| 作者单位： | 南通航运职业技术学院交通工程系,江苏南通,226010 |
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| 摘 要： | 为了解决空间直角坐标系间相互转换时,由于公共点的坐标精度差直接导致坐标转换精度差的问题.探讨利用抗差估计理论解决公共点坐标粗差的影响,结合具体的坐标转换算例,分别采用Tukey、IGG1及IGG3三种权函数进行迭代计算,完成坐标转换.结果表明,抗差估计原理用于空间直角坐标系间的相互转换,可以降低公共点粗差的影响,提高坐...
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| 关 键 词： | 抗差估计 坐标转换 权函数 最小二乘法 粗差 |
The Application of Robust Algorithm in Space Coordinate Conversion |
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| NI Fei,CUI Gui-guan. The Application of Robust Algorithm in Space Coordinate Conversion[J]. Hydrographic Surveying and Charting, 2011, 31(6): 28-30 |
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| Authors: | NI Fei CUI Gui-guan |
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| Affiliation: | (The Traffic Engineering of Nantong Shipping College,Nantong,Jiangsu,226010) |
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| Abstract: | In order to solve the gross error in space rectangular coordinates conversion between the different coordinate systems,this paper explores the use of robust estimation theory to solve public point coordinate error effect of coordinate transformation.Combined with the specific coordinates conversion example,using Tukey,IGG1 and IGG3 three kinds of power function for the iterative calculation,complete the coordinate conversion.The results show that the robust estimation theory used for space rectangular coordinates between the conversion,can reduce the effect of common point gross error and improve the reliability of transformation. |
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| Keywords: | robust estimation coordinate conversion weight function least square method gross error 】 |
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