DocumentCode :
907021
Title :
Performance of the excision CFAR detector in the presence of interferers
Author :
Goldman, H.
Author_Institution :
R&D Dept., Tadiran Commun. Group, Holon, Israel
Volume :
137
Issue :
3
fYear :
1990
fDate :
6/1/1990 12:00:00 AM
Firstpage :
163
Lastpage :
171
Abstract :
The presence of interferers in the sample set used by various types of cell-averaging CFAR detectors for estimation of the noise power can cause a drastic degradation in performance. The paper analyses the effect of interferers on the performance of the excision CFAR detector. In this detector, strong samples that exceed an excision threshold are excised from the sample set prior to the cell-averaging operation. The performance of the excision CFAR detector is analysed in both a benign environment and in an environment of an arbitrary number of interferers in the sample set. A Rayleigh fluctuating signal (Swerling Case 1) is used as a model for the received signal. It is found that the detectability loss of the detector in a benign environment is very low and that the degradation in performance caused by interferers is quite small even if the number of interferers is large
Keywords :
interference (signal); signal detection; Rayleigh fluctuating signal; cell-averaging; constant false alarm rate; detectability loss; excision CFAR detector; interferers; noise power; signal detection;
fLanguage :
English
Journal_Title :
Radar and Signal Processing, IEE Proceedings F
Publisher :
iet
ISSN :
0956-375X
Type :
jour
Filename :
216970
Link To Document :
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