Ionospheric turbulent parameter inversion using scintillation log-amplitude spectra: performance and results

Ionospheric scintillation is a threat for the availability of systems with high service disponibility such as GNSS services. Indeed, this phenomenon is characterized by an important fluctuation of the amplitude and phase of the signal in reception, that can lead to loss of lock and signal outages. Given the fact that scintillation is caused by small-scale irregularities of the ionospheric density (ranging from a few meters to tenth of kilometers), the phenomenon is usually localized, both temporally and spatially. Moreover, it has an important day-to-day variability. After decades of interest for that phenomenon, the forecasting of ionospheric scintillation is still in progress.