Study on Single-Stand GPS Positioning Error Modeling
Guan Guixi · Microcomputer Information · 2008
GPS positioning error is modeled to be the 10-order AR model on the basis of the time series analyses. Through the frequency domain analysis of AR(10), the system dynamic characteristics is determined by the dual main poles of AR(10) model, so the single-stand GPS positioning error can be described as the 2-order Markov process. The positioning precision is improved. The low-order model makes the positioning calculation easier and quicker. Through simulation, it is reasonable that GPS positioning error is modeled to be the 2-order Markov process.