RESEARCH ON CLOCK ERROR PREDICTION FOR ATOMIC CLOCKSLOADED ON GPS BLOCK IIR(M) SATELLITE CLOCKS
Dai Wei 1,2) ;Jiao Wenhai 3) ;Li Weipeng 4) ; and Jia Xiaolin 3)
1)Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 4500522)Navy Publishing Company, Tianjing 3000003)Xi’an Research Institute of Surveying and Mapping, Xi’an 7100544)95972 Troops,Jiuquan 735018
Abstract Which models can be used to predict optimum GPS Block IIR(M) satellite clock errors were researched in the case of few surveying data.The research shows that the accuracy for predicting in one day is a 1 ns and it in ten days is 10 ns with the GM(1,1)AR(p) compound model. The prediction results with better than the results with quadratic polynomial model and GM(1,1) model and the accuracy is better than that from IGS(the International GPS Service for Geodynamics) of the accuracy of 7 ns. Because the atomic clocks of COMPASS satellite navigational system are similar as these satellite atomic clocks, the accuracy can be assured using the GM(1,1)AR(p) compound model in COMPASS satellite clocks error prediction.
Dai Wei,Jiao Wenhai ,Li Weipeng et al. RESEARCH ON CLOCK ERROR PREDICTION FOR ATOMIC CLOCKSLOADED ON GPS BLOCK IIR(M) SATELLITE CLOCKS[J]. , 2009, 29(4): 111-115.
Dai Wei,Jiao Wenhai ,Li Weipeng et al. RESEARCH ON CLOCK ERROR PREDICTION FOR ATOMIC CLOCKSLOADED ON GPS BLOCK IIR(M) SATELLITE CLOCKS[J]. jgg, 2009, 29(4): 111-115.
