Channel estimation with a priori position for aeronautical communications via a satellite link

Bilel Raddadi (1) , Charly Poulliat (1, 2) , Nathalie Thomas (1, 2) , Marie-Laure Boucheret (1, 2) , Benjamin Gadat (3)

1 IRIT-SC - Signal et Communications
2 Toulouse INP - Institut National Polytechnique (Toulouse)
3 TAS - Thales Alenia Space [Toulouse]

In this paper, we investigate on some efficient channel estimation methods for the aeronautical multipaths channel. The proposed methods exploit both the particular form of the channel impulse response and a priori knowledge of some parameters (mainly delays) that can be inferred from geometrical considerations based on geolocation. The first estimation method is based on a parametric multipath channel model while the second tries to exploit the relative sparsity of the channel impulse response. In both cases, this reduces the number of variables to be estimated and it provides better performance compared to a direct classical least-square estimation of the discrete equivalent channel impulse response.

Mots clés: Channel estimation; Delays; Attenuation; Multipath channels; Estimation; Satellite broadcasting; Satellites

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]; Traitement du signal et de l'image [eess.SP]; Traitement des images [eess.IV]; Vision par ordinateur et reconnaissance de formes [cs.CV]; Intelligence artificielle [cs.AI]

Bilel Raddadi, Charly Poulliat, Nathalie Thomas, Marie-Laure Boucheret, Benjamin Gadat. Channel estimation with a priori position for aeronautical communications via a satellite link. 26th IEEE International Conference on Personal, Indoor and Mobile Radio Communications (PIMRC 2015), Aug 2015, Hong Kong, Hong Kong SAR China. pp. 532-537. ⟨hal-01461704⟩