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点位分布对拟合长线路正常高的影响
引用本文:柏飞,辛亚芳,张杰.点位分布对拟合长线路正常高的影响[J].测绘与空间地理信息,2012,35(9):117-119,122.
作者姓名:柏飞  辛亚芳  张杰
作者单位:1. 新疆维吾尔自治区交通规划勘察设计研究院,新疆乌鲁木齐,830006
2. 北京超图软件股份有限公司,北京,100015
3. 长江重庆航道局,重庆,400060
摘    要:已知点的分布密度直接关系到高程的拟合精度,文章以待求点与已知点间隔约500 m,1 000 m的线路利用不同模型来拟合线路进行精度分析,通过运用不同几何模型、不同的分布密度拟合长线路高程得出了一些有益结论,为工程前期设计提供一些参考资料。

关 键 词:GPS  正常高  几何模型  精度分析

The Influence of Known Point Distribution on Normal Height of Long Road Fitting
BAI Fei,XIN Ya-fang,ZHANG Jie.The Influence of Known Point Distribution on Normal Height of Long Road Fitting[J].Geomatics & Spatial Information Technology,2012,35(9):117-119,122.
Authors:BAI Fei  XIN Ya-fang  ZHANG Jie
Institution:1.Xinjiang Transportation Planning Surveying and Design Institute,Urumqi 830000,China; 2.Beijing Surpermap Software Company,Beijing 100015,China; 3.Changjiang Waterway Bureau of Chongjiang,Chongqing 400060,China)
Abstract:The known point distribution density is directly related to the elevation fitting precision,The paper analyses the precision of the known points and unknown points for intervals of 500 meters and 1000 meters to fit the line by using different geometric model and different distribution density fitting long-line elevation to draw some useful conclusions and to provide some reference for preliminary engineering design.
Keywords:GPS  normal height  geometry model  precision analysis
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