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- W2378088718 abstract "Subsatellite point for geostationary satellite(GEO) needs to be retained based on the continual orbit maneuver, especially for GEO satellite of partial subsatellite point. How to recover orbit rapidly for GEO satellite based on short-arc tracking is the key factor to improve the service performance and usability of the navigation system. Due to its geostationary feature, GEO satellite's orbit parameters are strongly correlated with the clock corrections parameters in precise orbit determination(POD) using L-band pseudorange data, which needs supports by the time synchronization technique. This paper presents an orbit rapid recovery method based on satellite clock offset and station clock offset. The satellite-ground time synchronization is realized by satellite-earth wireless two-way method, and the ground-ground time synchronization is realized by constellation combining orbit determination method. The precise orbit determination is realized based on pseudorange and phase data without clock offset. A new method of parameters decorrelation based on prior restriction and a short-arc orbit determination method based on the restriction by long-arc orbit determination are brought forward. The experiments based on ground data results indicate that the time of orbit recovery after maneuver is shortened from 24 h to 4 h. The 2-hour orbital prediction in radial component is better than 1 m, which is evaluated SLR data. User equivalent range error(UERE) is better than 1.5 m, and the precision is stable. The orbit recovery for GEO satellite of partial subsatellite point has come true." @default.
- W2378088718 created "2016-06-24" @default.
- W2378088718 creator A5006223726 @default.
- W2378088718 date "2015-01-01" @default.
- W2378088718 modified "2023-09-23" @default.
- W2378088718 title "Research on technique of orbit rapid recovery for GEO satellite of partial subsatellite point" @default.
- W2378088718 hasPublicationYear "2015" @default.
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