狭长区域GNSS控制网数据处理方法研究

摘要

针对狭长区域GNSS控制网边长差异较大的问题,本文通过划分子网来降低数据处理的难度,从基线处理和网平差两个方面,分析了系统误差来源,研究了基准处理中卫星轨道误差、对流层误差以及网平差中位置、尺度、方位和时间演变基准误差的改正方法,形成了一套高精度数据处理方案.基于该方法,对三峡库区GPS滑坡监测网的实测数据进行了分析与处理,获得了高精度的处理结果,本研究对狭长区域GNSS控制网的建立具有借鉴意义和指导作用.%For the problem of GNSS control network with different length characteristics in long and narrow area,by means of dividing subnet to reduce the technical difficulty of data processing,the sources of system errors are analyzed in GNSS data processing,the correction methods of satellite orbit error,troposphere error in baseline processing and the errors of position,scale,orientation and time evolution in the network adjustment are studied,a high precision data processing scheme is formed.Based on this method,the GNSS data of landslide monitoring network in the Three Gorges Reservoir area are analyzed and processed,and the high precision processing results are obtained.The research results can guide the establishment of GNSS control network in long and narrow area.