GAMIT、LGO、TBC软件解算工程控制网误差分析  

Error analysis of GAMIT,LGO and TBC solutions for engineering control networks

作　　者：熊红伟 于灵军[2] 戚天忠 XIONG Hongwei;YU Lingjun;QI Tianzhong(WSGRI Smart City(Wuhan)Engineering Technology Co.,Ltd.,Wuhan 430080,China;Jiuquan Iron and Steel(GROUP)Co.,Ltd.,Jiayuguang 735100,China)

机构地区：[1]中冶武勘智诚(武汉)工程技术有限公司,湖北武汉430080 [2]酒泉钢铁(集团)有限责任公司,甘肃嘉峪关735100

出　　处：《经纬天地》2025年第2期39-44,共6页Survey World

摘　　要：针对科研软件GAMIT 10.73,以及不同商用软件LGO和TBC,对同一工程控制网进行解算,分析不同GNSS数据处理软件对GNSS控制网处理结果的影响。结果表明:3款软件解算基线均能满足相应等级控制网对精度的要求;X、Y、Z 3个方向基线分量互差平均值在1 cm以内,最大互差为2.68 cm。GNSS控制网基线处理以后采用CosaGPS软件对GAMIT、LGO、TBC 3款软件处理的基线进行平差计算,网平差后最弱边相对中误差均能满足GNSS控制网对精度的要求;LGO与TBC平差后基线最弱边相对中误差较为接近;GAMIT解算结果的最弱边基线边长相对中误差优于LGO和TBC,且整体性较好。The article focuses on the scientific research software GAMIT 10.73 as well as different commercial software packages LGO and TBC,to resolve the same engineering control network.It analyzes the impact of different GNSS data processing software on the results of GNSS control network processing.The results show that the baseline solutions from three software packages all meet the accuracy requirements for control networks of the corresponding grade.The average mutual differences in the X,Y and Z baseline components are within 1 cm,with a maximum mutual difference of 2.68 cm.After processing the GNSS control network baselines,the CosaGPS software was used to perform adjustment calculations on the baselines processed by GAMIT,LGO and TBC.The relative mean square errors of the weakest side of the network after adjustment all meet the accuracy requirements for GNSS control networks.The relative mean square errors of the weakest side of the baselines adjusted by LGO and TBC are relatively close.The relative mean square error of the baseline length of the weakest side from the GAMIT solution is better than those from LGO and TBC and the overall performance is superior.

关 键 词：GMAIT LGO TBC 误差分析 控制网 

分 类 号：P228[天文地球—大地测量学与测量工程]