GAMIT/GLOBK中区域网和全球网绑定问题的探讨
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摘要
高精度GPS分析软件GAMIT/GLOBK广泛应用于地壳运动研究,在地震监测预报中发挥了重要的作用。为了利用GAMIT/GLOBK软件得到精确的GPS定位结果,必须解决GPS区域网与全球网绑定过程中出现的一些问题。通过分析和总结,发现天线相位中心改正模型、卫星天线和测站天线信息误差,是影响绑定中兼容性的3个主要因素。最后根据处理经验提出了相应的解决方案,并介绍了具体的调试技巧。
As a high-resolution GPS analysis software,GAMIT/GLOBK is widely applied in the research of crustal movement,and plays an important role in monitoring and forecasting the earthquake.To get precise GPS positioning results with GAMIT/GLOBK,we should settle the binding of GPS area and global network.In this paper,we summarized that antenna phase center correction model,information error of satellite antenna and ground site antenna are the main factors influencing compatibility in the binding,and discussed some experiential solutions and debug methods proposed as a conclusion of settling the binding of GPS area and global network.
As a high-resolution GPS analysis software,GAMIT/GLOBK is widely applied in the research of crustal movement,and plays an important role in monitoring and forecasting the earthquake.To get precise GPS positioning results with GAMIT/GLOBK,we should settle the binding of GPS area and global network.In this paper,we summarized that antenna phase center correction model,information error of satellite antenna and ground site antenna are the main factors influencing compatibility in the binding,and discussed some experiential solutions and debug methods proposed as a conclusion of settling the binding of GPS area and global network.
引文
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[8]郭金运.GPS接收机天线相位中心偏差的三维检定研究[J].武汉大学学报(信息科学版),2003,28(4):448-451.
[2]周硕愚,吴云,施顺英,等.GPS对地震预报的推进和问题研究[J].大地测量与地球动力学,2006,26(3):111-117.
[3]王敏,张祖胜,许明元,等.2000国家GPS大地控制网的数据处理和精度评估[J].地球物理学报,2005,48(4):817-823.
[4]陈俊勇,许厚泽,胡建国,等.23界IUGG大会有关大地测量的最新进展[J].测绘学报,2004,33(1):12-21.
[5]Mader G L.GPS antenna calibration at the National Geodetic Survey[J].GPS Solutions,1999,3(1):50-58.
[6]Zhu S,Massmann F-H,Yu Y,et al.Satellite antenna phase center offsets and scale errors in GPS solution[J].Journal of Ge-odesy,2003,76:668-672.
[7]王敏.GPS数据处理方面的最新进展及其对定位结果的影响[J].国际地震动态,2007,(7):3-8.
[8]郭金运.GPS接收机天线相位中心偏差的三维检定研究[J].武汉大学学报(信息科学版),2003,28(4):448-451.
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