Robust G-MUSIC

Romain Couillet (1) , A. Kammoun (2)

1 E3S - Supélec Sciences des Systèmes
2 LAGIS - Laboratoire d'Automatique, Génie Informatique et Signal

An improved MUSIC algorithm for direction-of-arrival estimation is introduced that accounts both for large array sizes N comparatively with the number of independent observations n and for the impulsiveness of the background environment (e.g., presence of outliers in the observations). This method derives from the spiked G-MUSIC algorithm proposed in [1] and from the recent works by one of the authors on the random matrix analysis of robust scatter matrix estimators [2]. The method is shown to be asymptotically consistent where classical approaches are not. This superiority is corroborated by simulations.

Domaines: Sciences de l'ingénieur [physics]; Traitement du signal et de l'image [eess.SP]

Romain Couillet, A. Kammoun. Robust G-MUSIC. EUSIPCO'14, Sep 2014, Lisbon, Portugal. pp.2155 - 2159. ⟨hal-01092849⟩