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  • performance assessment of single- and dual-frequency beidou/gps single-epoch kinematic positioning

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1361
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the first results of the short baseline single-epoch kinematic positioning based on dual-frequency real beidou/gps data are presented. the performance of the beidou/gps single-epoch positioning is demonstrated in both static and kinematic modes and compared with corresponding gps-only performance. it is shown that the availability and reliability of the single-frequency beidou/gps and dual-frequency beidou single-epoch kinematic positioning are comparable to those of the dual-frequency gps. the fixed rate and reliability of ambiguity resolution for the single- and dual-frequency beidou/gps are remarkably improved as compared to that of gps-only, especially in case of high cutoff elevations. for positioning accuracy with fixed ambiguities, the beidou/gps single-epoch solutions are improved by 23 and 4 % relative to the gps-only case for two short baseline tests of 8 km, respectively. these results reveal that dual-frequency beidou real-time kinematic (rtk) is already applicable in asia–pacific areas and that single-frequency beidou/gps rtk is also achievable but only with initialization of several seconds. more promisingly, the dual-frequency beidou/gps rtk can overcome the difficulties with gps-only rtk under the challenging conditions assuming, of course, that the additional beidou satellites are visible.

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