| 综合EGM2008模型和SRTM/DTM2006.0剩余地形模型的GPS高程转换方法 |
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| 引用本文： | 张兴福,刘成.综合EGM2008模型和SRTM/DTM2006.0剩余地形模型的GPS高程转换方法[J].测绘学报,2012,41(1):25-0. |
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| 作者姓名： | 张兴福 刘成 |
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| 作者单位： | 1. 广东工业大学;2. 铁道第三勘察设计院集团有限公司; |
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| 基金项目： | 国家自然科学基金，中国科学院动力大地测量学重点实验室开放基金 |
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| 摘 要： | 利用SRTM以及DTM2006.0全球地形模型构建剩余地形模型（RTM）数据,并将其转换为RTM高程异常。通过GPS/水准点的优化选择法,选择少量GPS/水准点的实测高程异常,扣除EGM2008模型以及SRTM与DTM2006.0模型求得的剩余模型高程异常,对残余高程异常进行拟合,从而进一步提高GPS高程转换的精度。最...
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| 关 键 词： | EGM2008 SRTM/DTM2006.0 剩余地形模型 GPS高程转换 |
| 收稿时间： | 2011-04-11 |
| 修稿时间： | 2011-06-22 |
The Approach of GPS Height Transformation Based on EGM2008 and SRTM/DTM2006.0 Residual Terrain Model |
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| ZHANG Xingfu,LIU Cheng.The Approach of GPS Height Transformation Based on EGM2008 and SRTM/DTM2006.0 Residual Terrain Model[J].Acta Geodaetica et Cartographica Sinica,2012,41(1):25-0. |
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| Authors: | ZHANG Xingfu LIU Cheng |
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| Institution: | 1.Department of Surveying and Mapping,Guangdong University of Technology,Guangzhou 510006,China;2.Department of Surveying and Mapping,The Third Surveying and Design Institute Group Corporation,Tianjin 300251,China |
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| Abstract: | The RTM data can be constructed from SRTM and DTM2006.0 global digital terrain model,and RTM height anomaly are computed based on RTM data.Several GPS/leveling points are selected with optimal choice method for constructing the residual height anomaly interpolated model according to their measured height anomaly,EGM2008 height anomaly and RTM height anomaly,and then the accuracy of height anomaly can be improved.Finally two cases of GPS/leveling data are adopted,and the results show that the accuracy of GPS height transformation can be obviously improved using residual height anomaly interpolation based on measured height anomaly,EGM2008 model expanded to 2160 degree and order and SRTM/DTM2006.0 residual terrain model. |
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| Keywords: | EGM2008 SRTM/DTM2006 0 residual terrain model GPS height transformation |
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