GNSS工程控制网数据处理的分析与比较

Analysis and Comparison of GNSS Engineering Control Network Data Processing

随着我国大型建设项目的日益增多,项目建设的难度也越来越大,对于GNSS控制网的布设和精度要求也越来越高,因此,本文主要针对GNSS控制网的数据进行处理分析和比较。本文主要是通过GPS数据处理软件、观测参数、多系统组合3个方面对GNSS控制网的数据处理进行探讨。本论文研究结果表明,国产软件精度基本可以满足工程需要,因此,可以仅在有高精度需求的工程项目中使用TBC软件进行数据处理。在对观测值的选择时,要根据数据的具体情况选择观测值的大小,在系统组合中,多系统的解算精度较高,但是在解算单基线的情况下,可能不如单系统的解算结果,要根据具体情况进行选择。

With the increasing number of large-scale construction projects in China,the difficulty of construction projects is also increasing,and the requirements for the layout and accuracy of GNSS control network are also becoming higher and higher.Therefore,this paper focuses on the data processing analysis and comparison of GNSS control network.This paper mainly discusses the data processing of GNSS control network from three aspects:GPS data processing software,observation parameters and multi-system combination.There search results of this paper show that the accuracy of domestic software can basically meet the engineering needs,so TBC software can only be used for data processing in engineering projects with high precision requirements.In the selection of the observed value,the size of the observed value should be selected according to the specific situation of the data.In the system combination,the solution precision of multi-system is higher,but in the case of solving single baseline,it may not be as good as the solution result of single system,which should be selected according to the specific situation.