GNSS基线边长与全站仪测量边长对比研究

Comparative Study on GNSS Baseline Length and Total Station Surveying Length

为了解GNSS基线边长与全站仪测量边长的可比性,分析了GNSS基线边长、全站仪测量边长等基本概念,阐述了全站仪检验GNSS基线边长的方法可行性的先决条件与应注意的问题。依托工程实例,设计了不同类型的试验工况,采用拓扑康GTS102N型全站仪对华测X90型GNSS采集与CEO软件数据处理后得到的基线边长进行了检验。结果表明,基线边长较短的条件下,全站仪测量平距与基线属性中的平距,具有可比性;以全站仪测距平均高程为GNSS网平差投影高程时,网平差后得到的基线边长与全站仪测量平距,具有可比性。

In order to find out the comparability of GNSS baseline length and total station surveying length,some basic concept,test method,precondition and precautions are described.On the basis of engineering example,different types of test conditions are designed.Baseline length is obtained by using HuaCe X90 GNSS and CEO software.It is tested by using Topcon GTS102 Ntotal station.It was shown that the horizontal distance of total station surveying and baseline attributes are comparable under the conditions of the baseline length shorter side.Meanwhile,basing on average elevation of total station surveying length as GNSS network projection height,the baseline with network adjustment resulting and horizontal distance of total station surveying are also comparable.