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Nonparametric rank detectors under K-distributed clutter in radar applications

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2 Author(s)
Sanz-Gonzalez, J.L. ; Dpto. SSR, Univ. Politecnica de Madrid, Spain ; Alvarez-Vaquero, F.

This correspondence deals with a comparative analysis of parametric detectors versus rank ones for radar applications, under K-distributed clutter and nonfluctuating and Swerling II target models. We show that the locally optimum detectors (LODs) (optimum for very low signal-to-clutter ratio (SCR)) under K-distributed clutter are not practical detectors; on the contrary, asymptotically optimum detectors (optimum for high SCR) are the practical ones. The performance analysis of the parametric log-detector and the nonparametric (linear rank) detector is carried out for independent and identically distributed (IID) clutter samples, correlated clutter samples, and nonhomogeneous clutter samples. Some results of Monte Carlo simulations for detection probability (Pd) versus SCR are presented in curves for different detector parameter values.

Published in:

Aerospace and Electronic Systems, IEEE Transactions on  (Volume:41 ,  Issue: 2 )

Date of Publication:

April 2005

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