Table of Contents
ISRN Signal Processing
Volume 2012, Article ID 614653, 8 pages
http://dx.doi.org/10.5402/2012/614653
Research Article

Suboptimal Coherent Radar Detection in a -Distributed Clutter Environment

Electronic Warfare and Radar Division, Defence Science and Technology Organisation, Edinburgh, SA 5111, Australia

Received 25 June 2012; Accepted 26 August 2012

Academic Editors: E. Ciaccio, F. Perez-Cruz, G. A. Tsihrintzis, and M. Wicks

Copyright © 2012 G. V. Weinberg. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The -Distribution is an important clutter model for high-resolution radar sea clutter returns obtained at X-band. The Neyman-Pearson optimal multilook detector has been derived recently, as well as the generalised likelihood ratio test suboptimal detector. Both these detectors are dependent on the modified Bessel-function of the second kind. This paper suggests a suitable suboptimal approach, using a well-known Bessel identity, eliminating the Bessel function dependence. This produces a computationally simpler detection scheme, whose performance is analysed using clutter parameters based upon real X-band radar returns.