| 阜新市区似大地水准面拟合研究 |
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| 引用本文： | 周志富,杨莉,王佩贤.阜新市区似大地水准面拟合研究[J].测绘工程,2010,19(3):47-50. |
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| 作者姓名： | 周志富 杨莉 王佩贤 |
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| 作者单位： | 山西大同大学,工学院,山西,大同,037003;辽宁工程技术大学,测绘与地理科学学院,辽宁,阜新,123000 |
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| 摘 要： | 基于GPS水准的阜新市区似大地水准面拟合问题,对获得的高程异常数据采用Huber抗差估计方法剔除粗差,并运用逐点剔除法选取GPS水准拟合的已知点,提高似大地水准面的拟合精度;通过对GPS水准中5种模型的试验比较,得到建立该地区似大地水准面的最佳方案—多面函数法。经闭合差检核,精度可达到四等水准的要求。
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| 关 键 词： | 似大地水准面 GPS水准 高程异常 残差 内符合精度 外符合精度 |
Research on the refinement of quasigeoid in Fuxin |
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| ZHOU Zhi-fu,YANG Li,WANG Pei-xian.Research on the refinement of quasigeoid in Fuxin[J].Engineering of Surveying and Mapping,2010,19(3):47-50. |
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| Authors: | ZHOU Zhi-fu YANG Li WANG Pei-xian |
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| Institution: | 1.Engineering School; Shanxi Datong University; Datong 037003; China; 2.College of Surveying and Geographic Science; Liaoning Technical University; Fuxin 123000; China); |
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| Abstract: | The fitting of quasigeoid of Fuxin urban based on GPS leveling is studied in this paper.The Huber robust estimation method is used to eliminate the outliers in the height anomalies.At the same time,the one-by-one elimination method is used to select the known points of GPS leveling and it improves the fitting precision.Then the optimum scheme-multidimensional function method which is used to establish the quasigeoid of the studied area is gotten after the comparison of five experiments of the GPS leveling m... |
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| Keywords: | quasigeoid GPS leveling height anomaly residual error inner coincident precision exterior coincident precision |
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