GAMIT软件在高速铁路中的应用  

Application of GAMIT Software in High-speed Railway

作　　者：杨志强 耿涛[1] YANG Zhiqiang;GENG Tao(Second Engineering Company Limited of China Railway First Group,Tangshan 063000,China)

机构地区：[1]中铁一局集团第二工程有限公司,河北唐山063000

出　　处：《江西测绘》2020年第3期5-7,16,共4页JIANGXI CEHUI

基　　金：中国中铁科技研发目项(2019-ZTKJ-56)

摘　　要：简要介绍了GAMIT软件数据处理流程,以高速铁路工程CPⅠ控制网复测数据为解算实例,选用L1,L2INDEPENDENT(双频观测中独立的L1,L2解)解算模型,并设置对流层延迟估计,用GAMIT软解算出来的基线联合武汉大学研制的Cosagps软件网平差,得到的基线成果与点的平面成果,用商业软件徕卡LEICA Geo Office(LGO)进行验证,结果表明,用GAMIT解算出的基线相对精度达到10-7,重复基线满足高铁测量规范要求,其成果与LGO软件成果相差微小,证实了GAMIT软件应用的可靠性。The data processing procedure of GAMIT software is briefly introduced.Taking the re-measurement data of the CPⅠcontrol network of the high-speed railway project as a solution example,selecting the L1,L2_INDEPENDENT(independent L1,L2 solution in the dual frequency observation)solution model,and setting the tropospheric delay estimation,the baseline calculated by GAMIT is combined with the Cosagps software network adjustment developed by Wuhan University.The baseline results and the plane results of the points obtained are verified by the commercial software Leica Geo Office(LGO).The results show that the relative accuracy of the baseline calculated by GAMIT reaches 10-7,and the repeat baseline meets the requirements of high-speed rail measurement specifications.The results are only slightly different from those of the.

关 键 词：GAMIT 相对精度 高速铁路 重复基线 对流层延迟估计 

分 类 号：U238[交通运输工程—道路与铁道工程]