GNSS控制网方案优化与数据处理分析  

GNSS Control Network Scheme Optimization and Data Processing Analysis

作　　者：刘平利[1] 乔天荣[1] 张永杰 张鸿祥[1] LIU Pingli(不详)

机构地区：[1]河南省地质调查院/河南省城市地质工程技术研究中心,河南郑州450001 [2]河南省地矿局测绘地理信息院,河南郑州450000

出　　处：《地理空间信息》2021年第1期106-108,I0007,共4页Geospatial Information

基　　金：河南省自然科学基金资助项目(182300410106)。

摘　　要：GNSS布设平面控制网已在工程项目中得到广泛应用。获得满意的平差结果的前提条件为:①高质量的基线数据;②约束GNSS控制网的已知点精度足够高,使得GNSS控制网的整体精度不受已知点约束而有明显改变;③优化的平差方案;④科学严密的平差模型。通过对某项目GNSS控制网的布设进行优化设计,并利用不同软件对观测数据进行处理分析,总结了GNSS控制网方案优化与数据处理的有效方法。GNSS plane control network has been widely used in engineering projects.In order to obtain high accuracy and reliable data,it is necessary to optimize the GNSS plane control network and select the data adjustment processing scheme.Therefore,in order to obtain satisfactory adjustment results,we must have the high quality baseline data,the given points constrained GNSS network should have high enough accuracy,the optimal adjustment scheme and the scientific and rigorous adjustment model.By optimizing the layout of GNSS control network and processing the observation data by different software,we summarized the effective methods of optimizing the GNSS control network scheme and data processing in this paper.

关 键 词：GNSS控制网 方案优化 基线向量 数据处理 

分 类 号：P228.4[天文地球—大地测量学与测量工程]