| 利用等效点质量进行(似)大地水准面拟合 |
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| 引用本文： | 束蝉方,李斐,郝卫峰.利用等效点质量进行(似)大地水准面拟合[J].武汉大学学报(信息科学版),2011(2):231-234. |
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| 作者姓名： | 束蝉方 李斐 郝卫峰 |
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| 作者单位： | 南京工业大学测绘学院;武汉大学测绘遥感信息工程国家重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(40974014); 国家863计划资助项目(2009AA12Z318,2009AA121401); 江苏省高校自然科学研究基金资助项目(10KJB420001); 南京工业大学青年教师学术基金资助项目(39713023) |
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| 摘 要： | 基于等效源原理,提出了一种半自由点质量模型,并给出了顾及相邻点空间关系构造虚拟点质量的简单快速迭代算法。实验结果表明,利用该点质量模型对离散GPS/水准观测数据进行拟合是可行的。
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| 关 键 词： | 点质量模型 (似)大地水准面 曲面拟合 |
Geoid/Quasigeoid Fitting Based on Equivalent Point Masses |
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| SHU Chanfang, LI Fei HAO Weifeng.Geoid/Quasigeoid Fitting Based on Equivalent Point Masses[J].Geomatics and Information Science of Wuhan University,2011(2):231-234. |
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| Authors: | SHU Chanfang LI Fei HAO Weifeng |
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| Institution: | SHU Chanfang1,2 LI Fei2 HAO Weifeng2(1 College of Geomatics Engineering,Nanjing University of Technology,200 North Zhongshan Road,Nanjing 210009,China)(2 State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China) |
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| Abstract: | To determine an orthometric height using GPS,it is necessary to know the geoid/ quasigeoid undulation.Many methods have been studied for the interpolation of discrete GPS/leveling data to get the geoid/quasigeoid undulation unknown.A new half free-positioned point masses model is proposed based on equivalent sources theory.Corresponding iterative algorithm to construct the point masses is also presented considering the relationship of the nearest GPS/leveling points.The results in Hong Kong and Shenzhen sho... |
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| Keywords: | point masses model geoid undulation surface fitting |
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