Performance analysis of LRT/GLRT-based array receivers for the detection of a known real-valued signal corrupted by noncircular interferences

Authors:
Abdelkader Oukaci;Jean-Pierre Delmas;Pascal Chevalier
Affiliations:
Institut TELECOM, TELECOM SudParis, Département CITI, CNRS UMR 5157, 91011 Evry Cedex, France;Institut TELECOM, TELECOM SudParis, Département CITI, CNRS UMR 5157, 91011 Evry Cedex, France;CNAM, CEDRIC Laboratory, 75003 Paris, France and Thales-Communications, EDS/SPM, 160 Bd Valmy, 92704 Colombes Cedex, France
Venue:
Signal Processing
Year:
2011

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Abstract

A performance analysis of likelihood ratio test (LRT)-based and generalized likelihood ratio test (GLRT)-based array receivers for the detection of a known real-valued signal corrupted by a potentially noncircular interference is considered in this paper. The distribution of the decision statistics associated with the LRT and GLRT is studied. This allows us to give exact closed-form expressions of the probability of detection (P"D) and false alarm (P"F"A) for two LRT-based receivers. Then, asymptotic (with respect to the data length) closed-form expressions are given for P"D and P"F"A for four GLRT-based receivers. Finally, in order to strengthen the obtained results, some illustrative examples are presented.