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| 引用本文： | 王解先,邱杨媛.????????????????????[J].大地测量与地球动力学,2007,27(3):25-27. |
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| 作者姓名： | 王解先 邱杨媛 |
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| 作者单位： | 1. 同济大学测量与国土信息系,上海,200092;现代工程测量国家测绘局重点实验室,上海,200092
2. 同济大学测量与国土信息系,上海,200092 |
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| 基金项目： | 新世纪优秀人才支持计划 |
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| 摘 要： | ?????????????????????WGS84????????????????????????????????????????????????????????????????????о???????С??????????????????????????????????????????????????????????????????????????????????????????????????100 km??100 km???Χ?????????????е???????????????????????????????????С??
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| 关 键 词： | WGS84???? ??????? ?????? ???????? ?????? |
| 文章编号： | 1671-5942（2007）03-0025-04 |
| 修稿时间： | 2007-01-22 |
INFLUENCE OF ELLIPSOIDAL HEIGHT ERROR ON SEVEN-PARAMETER TRANSFORMATION |
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| Wang Jiexian,Qiu Yang Yuan.INFLUENCE OF ELLIPSOIDAL HEIGHT ERROR ON SEVEN-PARAMETER TRANSFORMATION[J].Journal of Geodesy and Geodynamics,2007,27(3):25-27. |
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| Authors: | Wang Jiexian Qiu Yang Yuan |
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| Institution: | 1Department of Surveying and Geo-informatics, Tongfi University, Shanghai 200092 ; 2Key Laboratory of Advanced Engineering Survey of SBSM,Shanghai 200092 |
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| Abstract: | WGS84 coordinates can be transformed to local coordinates through seven parameter space transformation, but the ellipsoidal height of local coordinates usually cannot be precisely known. It should be probed weather the imprecise height will affect the transformation.The least square approach is used for solving the transformation parameters. Moreover the changes of parameters caused by error of ellipsoidal height of local coordinates are deduced. Finally, it is demonstrated that even though the ellipsoidal heights are not precise enough, its influence on coordinate transformation can be ignored in the range of 100 km×100 km. |
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| Keywords: | WGS84 Local coordinates space transformation seven-parameter transformation height error |
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