无缝仿射基准转换模型的方差分量估计
以无缝仿射基准变换为例，研究了无缝基准转换模型的方差分量估计理论，导出无缝基准变换过程中两套坐标的方差分量估计公式。通过模拟试验分析表明，采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值，从而有效提高无缝基准转换精度。...
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| Published in | 测绘学报 Vol. 45; no. 1; pp. 30 - 35 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
同济大学测绘与地理信息学院,上海,200092
2016
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 |
| DOI | 10.11947/j.AGCS.2016.20140676 |
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| Abstract | 以无缝仿射基准变换为例，研究了无缝基准转换模型的方差分量估计理论，导出无缝基准变换过程中两套坐标的方差分量估计公式。通过模拟试验分析表明，采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值，从而有效提高无缝基准转换精度。 |
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| AbstractList | P207; 以无缝仿射基准变换为例,研究了无缝基准转换模型的方差分量估计理论,导出无缝基准变换过程中两套坐标的方差分量估计公式.通过模拟试验分析表明,采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值,从而有效提高无缝基准转换精度. 以无缝仿射基准变换为例，研究了无缝基准转换模型的方差分量估计理论，导出无缝基准变换过程中两套坐标的方差分量估计公式。通过模拟试验分析表明，采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值，从而有效提高无缝基准转换精度。 |
| Author | 李博峰 |
| AuthorAffiliation | 同济大学测绘与地理信息学院,上海200092 |
| AuthorAffiliation_xml | – name: 同济大学测绘与地理信息学院,上海,200092 |
| Author_FL | LI Bofeng |
| Author_FL_xml | – sequence: 1 fullname: LI Bofeng |
| Author_xml | – sequence: 1 fullname: 李博峰 |
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| ClassificationCodes | P207 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.11947/j.AGCS.2016.20140676 |
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| Discipline | Astronomy & Astrophysics |
| DocumentTitleAlternate | Variance Component Estimation in the Seamless Affine Transformation Model |
| DocumentTitle_FL | Variance Component Estimation in the Seamless Affine Transformation Model |
| EndPage | 35 |
| ExternalDocumentID | chxb201601005 667908769 |
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| Keywords | variance component estimation 仿射变换 方差分量估计 无缝基准转换 seamless datum transformation affine transformation |
| Language | Chinese |
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| Notes | 11-2089/P seamless datum transformation; affine transformation; variance component estimation LI Bofeng （College of Surveying and Geo-informatics, Tongji University, Shanghai 200092,China） With the seamless affine transformation as an instance, the variance component estimation （VCE） theory is studied in the seamless datum transformation. The VCE formula of the seamless transformation model is derived. The results from the simulation experiments show that the VCE can correctly recover the objectwe variance components of coordinates in two datums. As a result, the accuracy of seamless transformation can be improved. |
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| Publisher | 同济大学测绘与地理信息学院,上海,200092 |
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| Snippet | 以无缝仿射基准变换为例，研究了无缝基准转换模型的方差分量估计理论，导出无缝基准变换过程中两套坐标的方差分量估计公式。通过模拟试验分析表明，采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值，从而有效提高无缝基准转换精度。 P207; 以无缝仿射基准变换为例,研究了无缝基准转换模型的方差分量估计理论,导出无缝基准变换过程中两套坐标的方差分量估计公式.通过模拟试验分析表明,采用方差分量估计方法能正确地恢复出客观体现两套坐标误差的方差值,从而有效提高无缝基准转换精度. |
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| StartPage | 30 |
| SubjectTerms | 仿射变换 方差分量估计 无缝基准转换 |
| Title | 无缝仿射基准转换模型的方差分量估计 |
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