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红外 2009
Constant False Alarm Rate Detection of Small Targets in Clutter Background
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Abstract:
To detect a small dim target in the clutter background,a CFAR method based on the CEM algorithm is described.The output distribution of a CEM detector is given and the TM-CFAR method is adopted to get CFAR thresholds.There is extended tail probability in actual detector distribution.This problem is solved by combining the CEM algorithm with the morphology method.The method is tested with the ETM Satellite data.Computer simulation shows that the method is robust.At the desired probability of false alarm PFA<...