| GPS拟合高程在基础测绘中的运用 |
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| 引用本文： | 雍广穗.GPS拟合高程在基础测绘中的运用[J].测绘与空间地理信息,2007,30(3):139-143. |
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| 作者姓名： | 雍广穗 |
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| 作者单位： | 新疆维吾尔自治区第一测绘院,新疆,昌吉,831100 |
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| 基金项目： | Application of GPS Fitting Height in Fundamental Surveying and Mapping |
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| 摘 要： | 利用GPS数据来确定大地高非常容易,但在实际应用中,我国地面点的高程通常采用正常高系统。大地高不同于表示高程的正常高,为此,笔者在GPS数据确定正常高方面作了一些初步的探讨。利用多项式拟合的数学方法,由少量的GPS与水准重合点将GPS大地高直接转换为具有厘米量级正常高,采用多项式拟合得到其他点的拟合高程。
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| 关 键 词： | GPS 似大地水准面 正常高 精化模型 |
| 文章编号： | 1672-5867（2007）03-0139-05 |
| 收稿时间： | 2006-11-30 |
| 修稿时间： | 2006-11-30 |
Application of GPS Fitting Height in Fundamental Surveying and Mapping |
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| YONG Guang-sui.Application of GPS Fitting Height in Fundamental Surveying and Mapping[J].Geomatics & Spatial Information Technology,2007,30(3):139-143. |
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| Authors: | YONG Guang-sui |
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| Institution: | The First Surveying and Mapping Institute of Xinjiang Uygur Autonomous Region, Changji 831100, China |
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| Abstract: | It is very easy to determine the geodetic height using GPS data.But in practical applications,the height of ground points is used normal height system in our country.And geodetic height differs from normal height,so preliminary research on the determination of normal height using GPS data is studied.In this paper,we can get fitting height of other points with mathematics methods of polynomial fitting and using some coincidence points of GPS and leveling to convert GPS geodetic height to normal height in centimeter-level. |
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| Keywords: | GPS quasi-geoid precision model |
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