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Performance comparison of mean-level CFAR detectors in homogeneous and non-homogeneous Weibull clutter for MIMO radars

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Abstract

In this paper, we analyze and compare the performance of the CA-CFAR, GO-CFAR and the SO-CFAR detectors in homogeneous and non-homogeneous Weibull background with known shape parameter for Multi-Input Multi-Output radars with widely separated antennas. The non-homogeneity is represented by the presence of interfering targets and a clutter edge in the reference window. We derive closed-form expressions of the probability of false alarm of the three detectors in homogeneous environment. Detector performance in non-homogeneous environment is investigated by means of Monte Carlo simulations. The numerical results show that the best performance is obtained by the SO-CFAR in the case of a high number of interferences, whereas the GO-CFAR has the best false-alarm regulation when the number of cells contaminated by clutter exceeds half the number of reference cells.

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Authors and Affiliations

  1. Laboratoire Signaux et Systèmes de Communication, Département d’électronique, Université Constantine, 25000, Constantine, Algeria

    M. Baadeche & F. Soltani

  2. Department of Ingegneria dellInformazione, University of Pisa, Pisa, Italy

    F. Gini

Authors
  1. M. Baadeche
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  2. F. Soltani
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  3. F. Gini
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Correspondence to F. Soltani.

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Baadeche, M., Soltani, F. & Gini, F. Performance comparison of mean-level CFAR detectors in homogeneous and non-homogeneous Weibull clutter for MIMO radars. SIViP 13, 1677–1684 (2019). https://doi.org/10.1007/s11760-019-01502-8

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  • DOI: https://doi.org/10.1007/s11760-019-01502-8

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