Low Earth Orbiter Satellite Precise Orbit Determination and its Precision Analysis from Satellite-Borne GPS with LP Estimation

To get high precise low earth orbiter (LEO) satellite orbit from satellite-borne GPS data, the satellite-borne GPS carrier phase measurements must be used, but there are still remnant cycle-slips after GPS data pre-processing. Least Square is an optimal method to solve parameters if the residual obeys to normal distribution, but it is difficult to process data with systematic error, LP estimation is an effective method to process data with systematic error, LP estimation is applied to estimate satellite-borne GPS data in LEO satellite precise orbit determination in this paper. It is showed that LP estimation is more effective than that of LS to process GPS phase carrier with systematic error, and improve the LEO satellite orbit precision.