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《Science of Surveying and Mapping》 2011-03
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GPS satellite clock error predicting based on ARMA analysis

CHENZheng-sheng①,LVZhi-ping①,ZHANG Qing-hua①,WANG Peng①②(①Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 450052,China;②72946 Troops,Shandong Zibo 255000,China)  
According to the benefits of quadratic polynomials and the Gray model in prediction of satellite clock error,this paper proposed to improve it with ARMA(Autoregressive Moving Average) model.To decompose the precise GPS clock error provided by the IGS(International GPS Service for Geodynamic),the trend item was fit in accordance with quadratic polynomial model and the Gray model whose difference lies only in the length of time,and the random item was simulated by ARMA model.At last,in the short-term and long-term GPS clock error forecasts with ARMA,good results were achieved.
【Fund】: 国家863计划资助项目(2009AA12Z305);; 国家自然科学基金项目(40874008)
【CateGory Index】: P228.4
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Chinese Journal Full-text Database 2 Hits
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