| 补偿最小二乘法在大地坐标转换中的应用 |
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| 引用本文： | 刘毅,岳建平,卢银宏,奚冠凡.补偿最小二乘法在大地坐标转换中的应用[J].测绘工程,2012,21(5):80-82. |
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| 作者姓名： | 刘毅 岳建平 卢银宏 奚冠凡 |
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| 作者单位： | 1. 河海大学地球科学与工程学院,江苏南京,210098
2. 南京市测绘勘察研究院有限公司,江苏南京,210005 |
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| 摘 要： | 针对Bursa七参数模型在参心坐标系与地心坐标系转换后仍存在较大残差的问题,通过对坐标转换模型误差进行分析,提出将模型误差看作非参数信号的半参数估计的补偿最小二乘模型进行处理,并利用实测数据进行分析计算,试验结果表明:该方法能够有效地消除模型误差等残差,实现高精度的坐标转换。
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| 关 键 词： | 补偿最小二乘法 Bursa七参数模型 大地坐标系转换 |
Application of penalized least squares method in geodetic coordinate system transformation |
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| LIU Yi
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YUE Jian-ping
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LU Yin-hong
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XI Guan-fan.Application of penalized least squares method in geodetic coordinate system transformation[J].Engineering of Surveying and Mapping,2012,21(5):80-82. |
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| Authors: | LIU Yi YUE Jian-ping LU Yin-hong XI Guan-fan |
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| Institution: | 1. School of Earth Science and Engineering, Hehai University, Nanjing 210098, China; 2. Nanjing Institute of Surveying and Mapping Co. ,Ltd, Nanjing 210005, China) |
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| Abstract: | There is still a big residual in coordinate conversion between reference and geocentric. By analy zing the model errors, it presents a penalized least squares model that regards the model error as a semi non-parametric signal. Through calculating and analyzing the measured data, this model can effectively e liminate the residual model error, to achieve high-precision coordinate transformation. |
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| Keywords: | penalized least squares model Bursa seven-parameter geodetic coordinate system |
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