CFAR Detection in the Framework of Time-Frequency Analysis

Hadj Larbi Beklaouz (1) , M'Hamed Hamadouche (2) , Malika Mimi (1) , Abdelmalik Taleb-Ahmed (3)

1 University of Mostaganem, Mostaganem, Algeria
2 LIMOSE - Laboratoire d’Informatique de Modélisation d’Optimisation et de Systèmes Electroniques [Boumerdes]
3 LAMIH - Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201

This paper deals with the resolution improvement of metric radars and proposes a new architecture that contains the constant false alarm rate (CFAR) technique conjointly with time-frequency analysis. The clutter map (CMAP) CFAR is used to detect the existence of targets; in this case, we search if there are one or more targets inside this cell using Gabor-based detector. Each target is considered to be fluctuating according to Swirling I model. The performance of the proposed system is evaluated and tested on simulated data using Monte-Carlo simulations under various clutter scenarios. In all cases, the obtained results show clearly that the new proposed detector outperforms the conventional OS-CFAR detector in terms of azimuth and range resolution.

Mots clés: "OS-CFAR"; "Gabor Transform"; "Monte-Carlo Simulations"; "Time-Frequency Analysis"

Domaines: Automatique / Robotique

Hadj Larbi Beklaouz, M'Hamed Hamadouche, Malika Mimi, Abdelmalik Taleb-Ahmed. CFAR Detection in the Framework of Time-Frequency Analysis. International Review of Electrical Engineering, 2016, 11 (3), pp.323-330. ⟨10.15866/iree.v11i3.8305⟩. ⟨hal-03426998⟩