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OSR CFAR Robust to Multiple Underwater Target Environments  

Hong, Seong-Won (School of Electronics Engineering, Kyungpook National University)
Han, Dong-Seog (School of Electronics Engineering, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.4, 2011 , pp. 47-52 More about this Journal
Abstract
Constant false alarm rate (CFAR) is an automatic detection algorithm for active sonar system. Among several CFAR algorithms, ordered statistics (OS) CFAR has the best performance over cell averaging (CA), smallest of (SO), greatest of (GO) algorithms at non-homogeneous environments. However, OS CFAR has the disadvantage of bad detection performance in multiple target conditions. We suggest an ordered statistics ratio (OSR) CFAR algorithm that is robust to multiple target environments. The proposed and conventional schemes are compared with computer simulations.
Keywords
CFAR; Multi-Target; Automatic; Detection;
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