CFAR Detection in the Framework of Time-Frequency Analysis

Hadj Larbi Beklaouz; M’hamed Hamadouche; Malika Mimi; Abdelmalik Taleb-Ahmed

doi:10.15866/iree.v11i3.8305

CFAR Detection in the Framework of Time-Frequency Analysis

Hadj Larbi Beklaouz^(1*), M’hamed Hamadouche⁽²⁾, Malika Mimi⁽³⁾, Abdelmalik Taleb-Ahmed⁽⁴⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/iree.v11i3.8305

Abstract

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.
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Keywords

OS-CFAR; Gabor Transform; Monte-Carlo Simulations; Time-Frequency Analysis

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