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《Science of Surveying and Mapping》 2019-01
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Data processing and analysis from 2012to 2016years VLBI observations

ZHANG Junjie;WANG Qianxin;WU Fei;WANG Zhiwen;CHEN Xiongchuan;School of Environment Science and Spatial Informatics,China University of Mining and Technology;  
The very long baseline interferometry(VLBI)plays a key role in earth orientation parameters(EOP)solutions and earth reference frame maintaining based on the high precision and stability of observations.However,in consideration of the massive and expensive of the hardware,the observation data is insufficient and discontinuous from the sparse stations.In this study,to solve problem mentioned above,2012-2016 years VLBI observations are processed by the VieVS to figure out the corresponding EOP parameters.Then,the polar-format interpolation on EOP is conducted,which could obtain the more continuous EOP than original data.Finally,the periodic terms of the interpolation EOP are extracted with the spectrum analyzing Experimental results show the annual and semi-annual periods are existed,which verifies the feasibility and reliability of the interpolation.
【CateGory Index】: P228.6
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