Analysis and modeling of GPS positioning error
Ronglei Kang · Computer Engineering and Applications Journal · 2009
A new method for building the model of GPS positioning error series is presented.Firstly,the multiple-point averaging and sample period graph is utilized to extract the trend and period term of the positioning error series respectively.Secondly,the residual series formed by taking out the trend term and the period term is predicted with auto -regressive model.Finally the combined model of positioning error series is proposed.The combined model syncretizes the characteristics and advantages of the three modeling methods effectively,and offsets the shortage of a single model.Test results are presented to demonstrate the feasibility and validity of the method in the end.