A GPS PRECISE CLOCK ERRORS PREDICTION MODEL BASED ON WAVELET AND ARMA
Zhang Qinghua; Sui Lifen; and Mu Zhongkai
Institute of Surveying and Mapping, Information Engineer University, Zhengzhou 450052
Abstract The quadratic polynomial model and grey model used in short and long period clock errors predictions are analyzed, considering that these models only think about trend item but not random item. An improved method is given,which combines wavelet and ARMA. The computation results show that through an example by using the precise clock errors from IGS (International GPS Service) the improved model has higher accuracy.
Key words ：
clock errors prediction
wavelet
ARMA
quadratic polynomial model
grey model
Received: 01 January 1900
Corresponding Authors:
Zhang Qinghua
Cite this article:
Zhang Qinghua,Sui Lifen,and Mu Zhongkai. A GPS PRECISE CLOCK ERRORS PREDICTION MODEL BASED ON WAVELET AND ARMA[J]. , 2010, 30(6): 100-104.
Zhang Qinghua,Sui Lifen,and Mu Zhongkai. A GPS PRECISE CLOCK ERRORS PREDICTION MODEL BASED ON WAVELET AND ARMA[J]. jgg, 2010, 30(6): 100-104.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I6/100
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