Non-Coherent CFAR Detector Using Compound Gaussian Clutter

Authors

  • Khaled Zebiri Laboratoire Signaux et Systèmes de Communication, Département d’électronique, Université des Frères Mentouri Constantine 1, Constantine, Algeria.
  • Faouzi Soltani Laboratoire Signaux et Systèmes de Communication, Département d’électronique, Université des Frères Mentouri Constantine 1, Constantine, Algeria.

Keywords:

CFAR, Compound Gaussian, Non Coherent Process, Robust Detector,

Abstract

In practical, the problem of radar signal detection is to automatically detect a target embedded in clutter. For high resolution radars, the modeling of sea clutter showed that compound Gaussian distributions are appropriate to describe the clutter returns. In this paper, we introduced a novel Constant False Alarm Rate (CFAR) detector in a non-coherent context, where the clutter follows a non-Gaussian distribution. The simulations via Monte Carlo showed that this new detector is robust for three Compound Gaussian (CG) clutter models; namely the K distribution, Compound Gaussian with inverse gamma texture (Generalized Pareto model, GP) and Compound Inverse Gaussian (CIG) distribution. The false alarm regulation was then examined within the presence of interfering targets. Finally, the performance of the proposed algorithm was validated using real data sea clutter.

References

M.A. Weiner, “Binary integration of fluctuating targets,” IEEE Transactions on Aerospace and Electronic Systems. Vol. 27, N° 1, pp. 11-17, 1991.

M. Schwartz, “A coincidence procedure for signal detection,” IRE Trans. Inf. Vol. 2, N° 4, pp. 135-139, 1956.

] M. Barkat. 'Signal Detection and Estimation' 2nd ed., Norwood, MA: Artech House, 2005.

E. Ollila, David E. Tyler, V. Koivunen, and H. Vincent Poor, “Compound-Gaussian clutter modeling with an inverse Gaussian texture distribution,”, IEEE Signal Processing Letters. Vol. 19, N° 12, pp. 876-879, 2012.

Y. Dong, “Distribution of X-Band high resolution and high grazing angle sea clutter,” Electronic Warfare and Radar Division Defence Science and Technology Organization, 2006.

E. Conte, A. De Maio, and C. Galdi, “Statistical analysis of real clutter at different range resolutions, “ IEEE Trans. Aerosp. Electron. Syst., Vol. 40, No. 3, pp. 903-918, july. 2004.

K. D. Ward, C. J. Baker, and S. Watts, “Maritime surveillance radar. Part 1: Radar scattering from the ocean surface,” Inst. Elect. Eng. Proc. F, Vol. 137, No. 2,pp. 51-62, Apr. 1990.

G.V. Weinberg, “Assessing Pareto fit ti high resolution high grazing angle sea clutter,” Electronics Letters, Vol. 47, N°. 8, pp. 516-517, 2011.

L. Rosenberg and S. Bocquet, “Application of the Pareto plus noise distribution to medium grazing angle sea clutter,” IEEE journal of selected topics in applied earth observations and remote sensing, Vol. 8, N° 1, pp. 255-261, 2015.

A. Balleri, A. Nehorai, J. Wang, “Maximum Likelihood Estimation for Compound-Gaussian Clutter with Inverse-Gamma Texture,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 43, N° 2, pp. 775-779, 2007.

J. L. Folks and R.S. Chikara, “Inverse Gaussian distribution and its application,” Electronics and communications in Japan (Part 3: Fundamental Electronic science , Vol. 77, N°. 1, pp. 32-42, 1994.

A. Mezache, M.Sahed , F. Soltani and I. Chalabi, “A model for non Rayleigh Clutter Amplitudes using Compound Inverse Gaussian Distribution : an experimentale analysis,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 51, N° 1, pp. 142-153, 2015.

M. M. Finn, R. S. Johnson, “Adaptive detection mode with threshold control as a function of spatially sampled clutter level estimates,” RCA Rev., 30, pp. 414-465, 1968.

G. B. Goldstein, “False-Alarm Regulation in Log-Normal and Weibull Clutter,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 9, N°. 1, pp. 84-92, 1973.

S.D. Himonas, and M. Barkat, “Automatic Censored CFAR Detection for non homogeneous Environments,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 28, N° 1, pp. 286-304, 1992.

E. Conte, M. Lops, G. Ricci, ‘Incoherent Radar Detection in Compound-Gaussian Clutter, » IEEE Trans. Aerosp. Electron. Syst., Vol. 35, No. 3, pp. 790-800, july. 1999.

M.E. Smith, and P.K. Varshney, “Intelligent CFAR Processor Based on Data Variability,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 36, N° 3, pp. 837-847, 2000.

A. Jakubiak, “False Alarm Probabilities for a Log-t Detector in K distributed Clutter”, Electronic Letters, Vol. 19, N°18, September 2003.

G. V. Weinberg and V. G. Glenny, “Enhancing Goldstein’s Log-t Detector in Pareto Distributed Clutter,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 53, N° 2, pp. 1035-1044, 2017.

A. Mezache., A. Bentoumi., M., Sahed., “Parameter estimation for compound-Gaussian clutter with inverse-Gaussian texture,” IET Radar Sonar and Navigation, vol. 11, no. 4, pp. 586-596, 2017.

P. Chung, W. Roberts, and J. Bohme, “Recursive K-distribution parameters estimation,” IEEE Transactions on Signal Processing, Vol. 53, N°2, pp. 397-402 ,2005.

Downloads

Published

2020-08-30

How to Cite

Zebiri, K., & Soltani, F. (2020). Non-Coherent CFAR Detector Using Compound Gaussian Clutter. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 12(3), 49–53. Retrieved from https://jtec.utem.edu.my/jtec/article/view/5422