GPS控制测量外业实施及数据处理方法

GPS control survey field implementation and data processing method

GPS RTK和CORS技术在地形图测绘、航空摄影测量、地籍测量等工作中得到广泛应用,其特点是速度快、无需点间通视,即可获得点的三维坐标,其精度为厘米级,在高精度的测量中,D级GPS测量仍是不可替代的选择。基于此,结合陕西省渭北石炭二叠纪煤田铜川矿区关庄勘查区D级GPS控制测量实例,着重介绍外业实施步骤要求及数据处理方法技巧,论述公式推导过程并进行结果分析。

GPS RTK and CORS technology had been widely used in topographic mapping,aerial photogrammetry,cadastral surveying and other work.It was characterized by fast speed,and that three dimensional coordinates of points could be obtained without visibility between points.Its accuracy was centimeter level.In high accuracy measurement,grade D GPS measurement was still an irreplaceable choice.Based on this,combined with the example of grade D GPS control survey in Guanzhuang exploration area of Tongchuan mining area in Weibei Carboniferous Permian coalfield,Shaanxi Province,this paper focused on the requirements of field implementation steps and data processing methods,discussed the formula derivation process and analyzed the results.