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

Aurélien Galmiche (1) , Vincent Fabbro (2) , Laurent Féral (3) , Damien Sérant (1) , Sébastien Rougerie (4) , Sébastien Trilles (1)

1 TAS - Thales Alenia Space [Toulouse]
2 DEMR, ONERA, Université de Toulouse [Toulouse]
3 LAPLACE-GRE - Groupe de Recherche en Electromagnétisme
4 CNES - Centre National d'Études Spatiales [Toulouse]

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.

Mots clés: INVERSION PROCESS; EQUATORIAL REGION; IONOSPHERE; GNSS; SCINTILLATION; SPECTRAL CHARACTERIZATION

Mots clés: IONOSPHERE; GNSS; SCINTILLATION; REGION EQUATORIALE; PROCESS INVERSE; SPECTRAL CARACTERISATION SPECTRE

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Aurélien Galmiche, Vincent Fabbro, Laurent Féral, Damien Sérant, Sébastien Rougerie, et al.. Ionospheric turbulent parameter inversion using scintillation log-amplitude spectra: performance and results. Beacon Satellite Symposium, Aug 2019, OLSZTYN, Poland. ⟨hal-02382293⟩