小区域GPS连续观测资料不同计算方案对比分析  

COMPARATIVE ANALYSIS ON DIFFERENT CALCULATION SCHEMES OF GPS CONTINUOUS OBSERVATION DATA IN SMALL REGION

作　　者：陈涛 刘代芹[2] 

机构地区：[1]重庆市地震局,重庆401147 [2]新疆维吾尔自治区地震局,新疆乌鲁木齐830011

出　　处：《内陆地震》2015年第3期213-223,共11页Inland Earthquake

基　　金：新疆维吾尔自治区自然科学基金(2012211B56);地震科技星火计划项目(XH14054Y;XH15035Y)

摘　　要：基于GAMI中的Baseline和Relax计算模式,采用3种不同的对流层模型,分析不同参考框架的选取和约束对站点坐标精度、基线精度以及站点速度的影响。数据统计表明:在处理小区域的GPS连续观测资料时,采用GAMIT中的Baseline模式及GMF对流层模型,在平差时利用IGS轨道和IERS地球自转参数来保持区域网的定向,可以获得精度更高的计算结果,有利于区域形变信息的提取。Based on the Baseline and Relax model of GAMIT, using three different troposphere mod- els to analyze the impact on the site precision, this paper made baseline precision and site speed on different reference frame. According to data statistics analysis, when GPS data in small region, it could use Baseline model and GMF troposphere model of GAMIT, and IGS orbit and IERS EOPS to maintain orientation of the regional network in adjustment. The process scheme could result in better precision and is good for collecting the regional deformation information.

关 键 词：小区域 GPS GAMIT 时间序列 

分 类 号：P315.7[天文地球—地震学]