Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Conference contribution/Paper › peer-review
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TY - GEN
T1 - Experimentally recorded amplitude and phase scintillation through a spirent simulator
AU - Jayawardena, T. Pinto
AU - Ali, A. M.
AU - Forte, B.
AU - Kinrade, J.
AU - Mitchell, C.
AU - Smith, S.
AU - Walter, T.
PY - 2014
Y1 - 2014
N2 - GNSS signals may experience radio wave scintillation due to refractive and diffractive processes when propagating through plasma density irregularities in the Earth's ionosphere. Scintillation can be responsible for signal degradation both in its amplitude and phase. The behavior of typical commercial GNSS receivers has in the past been analyzed in the presence of modelled ionospheric scintillation events. Here, the use of numerical or physical models was avoided. A systematic method was established to analyse GPS L1 receiver performance under scintillation conditions with the use of a Spirent simulator. The method is based on a systematic analysis of the receiver performance in response to different fade depths and durations. First, artificial signal perturbations described by simplified instances of fade depth and duration were superimposed on to nominal GPS signals generated by a Spirent simulator; to visualize a given receiver's performance. Second, scintillationinduced signal perturbations were extracted from real experimental data and superimposed on to the nominal simulated GPS signals. The receiver response to perturbed signal conditions was characterized in terms of the probability to lose lock as a function of fade depth and duration.
AB - GNSS signals may experience radio wave scintillation due to refractive and diffractive processes when propagating through plasma density irregularities in the Earth's ionosphere. Scintillation can be responsible for signal degradation both in its amplitude and phase. The behavior of typical commercial GNSS receivers has in the past been analyzed in the presence of modelled ionospheric scintillation events. Here, the use of numerical or physical models was avoided. A systematic method was established to analyse GPS L1 receiver performance under scintillation conditions with the use of a Spirent simulator. The method is based on a systematic analysis of the receiver performance in response to different fade depths and durations. First, artificial signal perturbations described by simplified instances of fade depth and duration were superimposed on to nominal GPS signals generated by a Spirent simulator; to visualize a given receiver's performance. Second, scintillationinduced signal perturbations were extracted from real experimental data and superimposed on to the nominal simulated GPS signals. The receiver response to perturbed signal conditions was characterized in terms of the probability to lose lock as a function of fade depth and duration.
KW - IONOSPHERE
M3 - Conference contribution/Paper
SP - 1108
EP - 1114
BT - Proceedings of the 27th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2014)
PB - Institute of Navigation
CY - Washington D.C.
T2 - 27th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GNSS)
Y2 - 8 September 2014 through 12 September 2014
ER -