似大地水准面模型在张家口地区矿业权核查中的应用  

Application of Quasi-geoid Model in Mining Right Inspection in Zhangjiakou

作　　者：郭有平 王文栋 

机构地区：[1]河北省地质测绘院,河北廊坊065000

出　　处：《地矿测绘》2012年第2期29-31,共3页Surveying and Mapping of Geology and Mineral Resources

摘　　要：矿权核查工作需要建立覆盖数千平方公里范围的GPS控制网,如何保证控制点的平面高程精度是必须解决的重要问题。为此,以张家口地区矿业权核查GPS控制网的建立为例,从构网、观测、平差计算、精度分析等方面系统介绍了大面积GPS控制网的建立步骤和方法,并得出利用似大地水准面模型内插的方法求解控制点高程,可得到较高精度的结论。Building GPS control network that cover thousands of kilometers in mining right inspection work is neces- sary. How to ensure the plane and height accuracy of control points is an important problem that must be solved. The thesis, for example, building GPS control network of mining right inspection in Zhangjiakou, comprehensively introduces building steps and methods of large area GPS control network from the aspects of network structure, surveying, adjust- ment calculation, precision analysis and so on, and importantly explains getting more high precision control point results using quasi-geoid model.

关 键 词：GPS控制网 似大地水准面模型 高程异常 大地高 正常高 

分 类 号：P228.4[天文地球—大地测量学与测量工程]