| EGM2008在GPS高程拟合中的应用研究 |
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| 引用本文： | 罗文生,倪津,施昆,陈舫益. EGM2008在GPS高程拟合中的应用研究[J]. 测绘与空间地理信息, 2015, 0(4): 177-179,181. DOI: 10.3969/j.issn.1672-5867.2015.04.059 |
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| 作者姓名： | 罗文生 倪津 施昆 陈舫益 |
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| 作者单位： | 1. 昆明理工大学国土资源工程学院,云南昆明,650093;2. 云南省测绘产品检测站,云南昆明,650034 |
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| 摘 要： | 西南边境地区地形复杂、山高坡陡、交通不便,采用常规的水准测量方法测量极为困难。本文引入最新的EGM2008地球重力场模型用于西南边境地区的GPS高程拟合,并探讨与分析了基于EGM2008地球重力场模型的高程拟合精度。本文以云南省"兴地睦边"农田整治重大项目中的某高山地测区为例,结合常规高程拟合数学模型与EGM2008地球重力场模型,建立区域似大地水准面精化模型进行GPS高程拟合,其结果与常规高程拟合数学模型的结果进行对比分析。
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| 关 键 词： | EGM2008 高程异常 似大地水准面 拟合 |
Applcia tion of EGM2008 in the GPS Elevation Fitting |
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| LUO Wen-sheng , NI Jin , SHI Kun , CHEN Fang-yi. Applcia tion of EGM2008 in the GPS Elevation Fitting[J]. Geomatics & Spatial Information Technology, 2015, 0(4): 177-179,181. DOI: 10.3969/j.issn.1672-5867.2015.04.059 |
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| Authors: | LUO Wen-sheng NI Jin SHI Kun CHEN Fang-yi |
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| Affiliation: | LUO Wen-sheng;NI Jin;SHI Kun;CHEN Fang-yi;Faculty of Land Resource Engineering,Kunming University of Science and Technology;Yunnan Survey and Mapping Products Testing Station; |
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| Abstract: | Based on complex terrain, high mountains and steep slopes, inaccessible in the Southwest border region, the conventional method of leveling measurement is extremely difficult.This paper introduced the latest EGM2008 Earth gravity field model for GPS el-evation fitting in the southwest border region, and explored and analyzed elevation fitting accuracy based on EGM2008 Earth gravity field model.Through taking one alpine survey area of the"develop the local economy and harmony border area"major farmland reno-vated project in Yunnan as example, this paper combined with conventional height fitting mathematical models and EGM2008 Earth gravity field model, established regional quasi-geoid refinement model to GPS elevation fitting, the results were compared with con-ventional height fitting mathematical model results. |
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| Keywords: | EGM2008 elevation anomaly quasi-geoid fitting |
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