高铁CPⅠ独立控制网的数据处理及分析  

Interrelated Theory and Data Analysis of High-speed Railway CPI Independent Control Net

作　　者：方振华 

机构地区：[1]南宁市勘测院,广西南宁530021

出　　处：《城市勘测》2010年第3期51-55,共5页Urban Geotechnical Investigation & Surveying

摘　　要：基线向量的处理和网平差是GPS网数据处理过程中很重要的两个阶段,文章介绍了基线解算和网平差相关原理及其精度指标,通过工程实例对GPS控制网数据进行处理,系统性分析了GPS网基线处理、坐标系统转换、网平差等完整的数据处理流程,并通过介绍建立参考椭球的方法,探讨了建立符合需要的测区独立坐标系的原理和过程。最后对于观测数据的质量和精度作出了评定,说明了GPS网数据处理的有效性。The process of baseline and network adjustment are two essential periods in the data process of GPS control net.Conbing with an actual project,we analyse the quality of obversations we got using some acuracy indicators in this paper.We deal with the data of a practical project.Systemaitcally introduce complete flow of data processing,analyze the way to process GPS baseline,to make coordinate system conversion,as well as to make network adjustment.Next,the quality and precision of observations are assessed,making sure the availability of GPS network data.Also we discuss the method and theory of building a new reference ellipsoid and independent coordinate system that approches to the construction area.

关 键 词：GPS网 数据 基线处理 精度 

分 类 号：P207[天文地球—测绘科学与技术] P228