Chapter 17 A Method Based on the Orbital Error Correction of the Wide Area Differential Positioning Algorithm

摘要

Satellite navigation service using GEO satellite provides positioning service to local users. Continuous services ask for kinetic method to determine orbit during the GEO satellite orbital maneuver phase. However, kinetic method brings larger orbital error so that the positioning accuracy will drop. This paper presents a method based on the orbital error correction of the wide area differential positioning algorithm. Based on analysis of the GEO satellite orbit maneuver characteristics and other factors that affect positioning accuracy, an improved algorithm is designed, which can enhance the positioning accuracy during orbit maneuver.