Modelling the radiowave propagation with a split-step wavelet method for radio occultation

Rémi Douvenot (1) , Alexandre Chabory (1) , Sébastien Rougerie (2)

1 ENAC - Ecole Nationale de l'Aviation Civile
2 CNES - Centre National d'Études Spatiales [Toulouse]

This paper introduces the split-step wavelet (SSW) propagation technique applied to radio occultation (RO). This technique accounts for both a complex atmosphere and the ground reflection. It is applied on a scenario between a GPS satellite and a low-elevation orbit satellite. The atmosphere is modelled using an ITU model. The Earth is considered as a sphere. We show that the atmosphere and ground effects are both visible at the receiving satellite. Therefore, SSW is a good candidate for RO propagation modelling.

Mots clés: Split-step wavelet; radio occultation; GPS signal; propagation

Domaines: Traitement du signal et de l'image [eess.SP]

Rémi Douvenot, Alexandre Chabory, Sébastien Rougerie. Modelling the radiowave propagation with a split-step wavelet method for radio occultation. MIKON 2018 22nd International Microwave and Radar Conference, May 2018, Poznan, Poland. pp. 562-564, ⟨10.23919/MIKON.2018.8405285⟩. ⟨hal-01839331⟩