The BDS-2 system is designed as a GEO/IGSO/MEO mixed constellation. Generally, there exists satellite maintaining operation for GEO or IGSO satellite every 7–10 days. During this period the maneuver satellite is out of service. It will be about 5–6 h starting from the beginning of satellite maneuver to the release of the first group of recovery orbit. Strategy of satellite clock assisted precise orbit determination (POD) is normally implement, where the most critical factor that contributes to the availability of maneuver satellites is the length of accumulation of data. However, the last hour of real-time observed pseudo-range data of tracking station could not be included in POD, due to the reason that the satellite clock could not be observed in real-time. In this paper, we propose to use the polynomial fitting method to forecast the satellite clocks and use it in POD. We analyze the accuracy of satellite clocks prediction and its contribution to the rapid orbit recovery. Results show that the satellite unavailability time could be shortened by at least 1 h, which effectively improves satellite availability. And it improves the accuracy of orbit determination and prediction by more than 15 and 70%.


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    Titel :

    Analysis of BDS Satellite Clock Prediction Contribution to Rapid Orbit Recovery


    Weitere Titelangaben:

    Lect. Notes Electrical Eng.


    Beteiligte:
    Sun, Jiadong (Herausgeber:in) / Yang, Changfeng (Herausgeber:in) / Guo, Shuren (Herausgeber:in) / Chen, Qian (Autor:in) / Chen, Junping (Autor:in) / Zhang, Yize (Autor:in) / Wu, Shan (Autor:in) / Gong, Xiuqiang (Autor:in)

    Kongress:

    China Satellite Navigation Conference ; 2018 ; Harbin, China May 23, 2018 - May 25, 2018



    Erscheinungsdatum :

    04.05.2018


    Format / Umfang :

    9 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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