基于不同平差软件的GNSS控制测量数据处理方法研究  

Research on GNSS Control Measurement Data ProcessingMethod Based on Different Adjustment Software

作　　者：许明佳 董坤烽 郭天伟 XU Mingjia;DONG Kunfeng;GUO Tianwei(Southwest Non-Ferrous Kunming Survey and Design(Institute)Co.,Ltd.,Kunming 650217,China;Yunnan Construction Investment First Survey and Design Co.,Ltd.,Kunming 650031,China;West Yunnan University of Applied Sciences,School of Earth Sciences and Engineering,Dali 671006,China;West Yunnan University of Applied Sciences,Key Laboratory of Mountain Real Scene Point Cloud Data Processing and Application for Universities in Yunnan Province,Dali 671006,China)

机构地区：[1]西南有色昆明勘测设计(院)股份有限公司,云南昆明650217 [2]云南建投第一勘察设计有限公司,云南昆明650031 [3]滇西应用技术大学地球科学与工程学院,云南大理671006 [4]滇西应用技术大学云南省高校山地实景点云数据处理及应用重点实验室,云南大理671006

出　　处：《测绘与空间地理信息》2024年第5期116-118,121,共4页Geomatics & Spatial Information Technology

摘　　要：以某工程场地控制测量项目为研究对象,通过对GNSS控制网布设方法进行优化设计,采用高质量独立基线构成项目GNSS控制网,利用三维无约束平差对观测基线进行粗差检验,保证基线质量。分别采用TBC和COSA 2种GNSS数据处理软件对GNSS控制网进行平差计算,验证了在相同观测数据、相同控制网形、相同起算数据的条件下,不同平差软件精度指标和解算结果会存在一定差异,但成果较差相对较小,故在GNSS控制测量过程中,可采用多种平差软件进行独立计算,成果互为验证,进一步保障控制测量成果的可靠性。In this paper,a control measurement project of an engineering site is taken as the research object.By optimizing the layout method of GNSS control network,high-quality independent baselines are adopted to form the GNSS control network of the project,and three-dimensional unconstrained adjustment is used to check the gross error of the observation baseline to ensure the quality of the baseline.Two kinds of GNSS data processing software,TBC and COSA,were used for adjustment calculation of GNSS control net-work,respectively.It was verified that under the condition of the same observation data,the same control network shape and the same intitial data,there would be some differences in the accuracy index and calculation results of different adjustment software,but the differences in results were relatively small.Therefore,in the process of GNSS control measurement,a variety of adjustment software can be used for independent calculation,and the results are mutually verified to further ensure the reliability of the control measure-ment results.

关 键 词：GNSS控制测量 网形设计 平差计算 中误差 

分 类 号：P228.1[天文地球—大地测量学与测量工程]