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  • ionospheric threat simulation for gnss using the spirent hardware signal simulator

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1034
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     ionospheric disturbances present a considerable hazard to single-frequency satellite navigation systems for airborne users. we discuss our implementation of three ionospheric threat models in the dlr “multi-output advanced signal test environment for receivers” global navigation satellite system simulator, which is based on spirent gss 7780/7790 signal generator. these threat models include the standard front-based threat model developed for the integrity assessment of ground-based augmentation systems (gbas), a simplified plasma bubble model, and ionospheric scintillation, which can be combined with either of the two previously mentioned models. these effects can now straightforwardly be simulated at the german aerospace center’s research facilities. as an example, we simulate a gbas ground facility with code–carrier divergence monitoring, affected by an ionospheric front, and we show the results of a simulation with coincidental occurrence of a plasma bubble and scintillation with an s 4 index of 0.4.

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