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| 引用本文： | 曾安敏,张丽萍.�˼�������;ֲ����������������ת����[J].大地测量与地球动力学,2012,32(2):120-123. |
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| 作者姓名： | 曾安敏 张丽萍 |
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| 作者单位： | 1. 解放军信息工程大学测绘学院,郑州450052;西安测绘研究所,西安710054
2. 西安测绘研究所,西安,710054 |
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| 基金项目： | 国家自然科学基金，国家863基金 |
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| 摘 要： | ???????????????????????????????????????????????????????κ???????????????????????????????????????????????????????????任?????????????????????????????1980???????????2000?????????????任?У????????????????????????????????????????????
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| 关 键 词： | ??????? ???任 ??????? 2000??????????? 1980????????? |
COMBINED METHOD FOR DATUM TRANSFORMATION CONSIDERING STOCHASTIC ERROR AND LOCAL DEFORMATION |
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| Zeng Anmin
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Zhang Liping.COMBINED METHOD FOR DATUM TRANSFORMATION CONSIDERING STOCHASTIC ERROR AND LOCAL DEFORMATION[J].Journal of Geodesy and Geodynamics,2012,32(2):120-123. |
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| Authors: | Zeng Anmin Zhang Liping |
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| Institution: | 1)Institute of Surveying and Mapping of Information Engineering University,Zhengzhou 450052 2)Xi’an Information Division of Surveying and Mapping,Xi’ an 710054) |
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| Abstract: | The different coordinate systems mean different geophysical concept.In the geodetic network the local deformation and accumulation error exist,and there are stochastic value in the common points with the different coordinate.So the coordinate transformation from low precise coordinate frame to the high one can not approve a high precise reference frame after this transformation.A combined method based on variance component estimation using similarity transformation and regressive approximating is presented.For the local error accumulation and distortion and the stochastic value of the common points,the accuracy of coordinate system is improved after the transformation with the combined method from Xi’an Geodetic Coordinate System 1980(XAS80) to China Geodetic Coordinate System 2000(CGCS2000). |
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| Keywords: | coordinate transformation combined method variance component XAS80 CGCS2000 |
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