刘国仕;邓才林;唐健林;

• 1:邵阳学院
• 2:湖南省地质调查院
• 3:湖南省地质测绘院

摘要(Abstract)：

针对工程测量中GPS大地高代替水准正常高的问题,该文根据邵阳市实测GPS、水准数据,采用二次曲面拟合模型得到了该地区高程拟合参数。通过正常高与拟合高程进行比较,最大拟合残差为3.9cm,最小为0cm,高程异常模型拟合中误差为1.85cm,证明了该区域GPS高程拟合参数可以满足工程建设中大地高代替正常高的要求。根据GPS高程拟合参数得到的邵阳市辖区及周边地区高程异常曲面具有由西北至东南递减且变化梯度逐渐递减的特征,该区域最大高程异常15.65m,最小高程异常14.75m。

关键词(KeyWords)： GPS;正常高;大地高;高程异常;曲面拟合

Abstract:

Keywords:

基金项目(Foundation): 湖南省自然科学基金项目(2016JJ6135);; 湖南省教育科学“十三五”规划项目(XJK016CGD005);; 邵阳学院—长沙理工大学—中国有色金属长沙勘察设计研究院有限公司测绘工程校企合作人才培养省级示范基地项目

作者(Author): 刘国仕;邓才林;唐健林;

Email:

DOI: 10.16251/j.cnki.1009-2307.2017.08.013

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