摘要
通过采用GPS实测数据对柴达木盆地部分石油三角点的精度进行了分析,首先谈了精度分析的原理和方法,然后对盆地花土沟地区和黄瓜梁地区的两个实例数据分析,得出结论:WGS-84坐标系和北京54坐标系在该区域系统偏差较大;盆地工程测量前应该选择合适的投影面和投影经线,然后根据实测数据进行分析,选择合适的三角点约束平差。
In this paper precision of some oil triangulation point is analysed using measured data by GPS.Firstly,we talk about theory of precision,then throngh mearured data in Huatu- gou and Huanggualiang district we get the conclusion that sys- tem deviation between WGS-84 and BeiJing-1954 is large and before we start engineering survey we must choose the plane and longitude line of projection for constraint adjustment.
出处
《测绘地理信息》
2013年第5期28-30,共3页
Journal of Geomatics
