| 青藏高原中部似大地水准面精化的应用研究 |
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| 引用本文： | 王革胜,曹学成,高海容,李辉.青藏高原中部似大地水准面精化的应用研究[J].测绘与空间地理信息,2014(7):187-189,196. |
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| 作者姓名： | 王革胜 曹学成 高海容 李辉 |
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| 作者单位： | 68011部队,甘肃兰州730020 |
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| 摘 要： | 介绍了精化似大地水准面的常用方法。采用青海和西藏三级GPS大地控制网测量数据,利用移动曲面法、改进的移动曲面法、二次曲面拟合法和改进的二次曲面拟合法对青藏高原中部似大地水准面进行了拟合计算。结果表明,利用改进的移动曲面法和改进的二次曲面法能有效地提高本地区似大地水准面的精化效果,精度优于0.5 m。
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| 关 键 词： | 似大地水准面 改进的移动曲面法 改进的二次曲面拟合法 EGM 青藏高原中部 |
Research and Application of Quasi -Geoid Accuracy in Tibetan Plateau Middle |
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| WANG Ge-sheng,CAO Xue-cheng,GAO Hai-rong,LI Hui.Research and Application of Quasi -Geoid Accuracy in Tibetan Plateau Middle[J].Geomatics & Spatial Information Technology,2014(7):187-189,196. |
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| Authors: | WANG Ge-sheng CAO Xue-cheng GAO Hai-rong LI Hui |
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| Institution: | (Troops 68011, Lanzhou 730020, China) |
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| Abstract: | Several methods are analyzed in quasi - geoid accuracy. Used data are the 3 - order GPS geodetic network in Qinghai and Xiang. Moving surface method, improved moving surface method, quadric surface fitting and improved quadric surface fitting are used in quasi-geoid accuracy in Tibetan plateau middle. The results show that improved moving surface method and improved quadric surface fitting can be improved accuracy of quasi - geoid Accuracy in this area. |
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| Keywords: | quasi -geoid improved moving surface method improved quadric surface fitting EGM2008 Tibetan Plateau middle |
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