| 提高1∶50000重力调查中测地工作精度的几种方法 |
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| 引用本文： | 杜好强,吕华,秦学虎,李志成.提高1∶50000重力调查中测地工作精度的几种方法[J].测绘与空间地理信息,2012(6):77-79. |
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| 作者姓名： | 杜好强 吕华 秦学虎 李志成 |
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| 作者单位： | 吉林省勘查地球物理研究院 |
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| 摘 要： | 介绍了1∶50 000重力勘查中提高测地工作的新思路,提出了采用GPS-RTK方法,利用CORS网站测定重力测点点位3维坐标的作业方法、消除高程异常影响而建立似大地水准面模型的方法及建立DTM数字高程模型在计算机上进行地形改正方法等。
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| 关 键 词： | RTK CORS网 似大地水准面 DTM模型 地形改正 |
Several Methods of Improving the Accuracy of Geodetic Operation in Gravity Investigation of 1∶50000 |
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| DU Hao-qiang,LV Hua,QIN Xue-hu,LI Zhi-cheng.Several Methods of Improving the Accuracy of Geodetic Operation in Gravity Investigation of 1∶50000[J].Geomatics & Spatial Information Technology,2012(6):77-79. |
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| Authors: | DU Hao-qiang LV Hua QIN Xue-hu LI Zhi-cheng |
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| Institution: | (Jilin Exploration Geophysical Research Institute,Changchun 130012,China) |
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| Abstract: | This paper introduces the new idea in geodetic operation in gravity investigation of 1∶50 000,puts forward operational methods using GPS-RTK method and CORS network of obtaining the 3D coordinates of gravity measurement points,methods of eliminating elevation abnormality in order to build quasi-geoid and methods of building up DTM digital elevation model for computerized correction of topography. |
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| Keywords: | RTK CORS network quasi-geoid DTM model topography correction |
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