Séminaire ICI : Mohammed Nabil El Korso
Titre du séminaire et orateur
A GLRT based framework for the resolvability of two sources in a MIMO context.
Mohammed Nabil El Korso, TU Darmstadt.
Date et lieu
Mercredi 30 mai à 15:00
ENSEA, Cergy-Pontoise, salle 384 (plan d'accès à l'ENSEA).
During the last decade, multiple-input multiple-ouput (MIMO) systems have received an increasing interest. One can ﬁnd several estimation schemes in the literature related to the direction of arrivals and/or direction of departures, but their ultimate performance in terms of the statistical resolution limit (SRL) have not been fully investigated. In this presentation we derive the SRL to resolve two closely spaced sources in clutter interference using a MIMO system with widely separated antennas. Toward this end, we use a hypothesis test formulation based on the generalized likelihood ratio test (GLRT).
Furthermore, we investigate the link between the SRL and the minimum signal-to-noise ratio (SNR) required to resolve two closely spaced sources for a given probability of false alarm and for a given probability of detection. Finally, theoretical and numerical analysis of the SRL are presented for several scenarios (with/without clutter interference, known/unknown parameters of interest and known/unknown noise variance).