DocumentCode :
2884519
Title :
Detection in Range-Heterogeneous Weibull Clutter
Author :
Doyuran, Ulku Cilek ; Tanik, Yalcin
Author_Institution :
ASELSAN Inc., Ankara
fYear :
2007
fDate :
17-20 April 2007
Firstpage :
343
Lastpage :
347
Abstract :
The paper deals with detection in range-heterogeneous Weibull clutter. Heterogeneity is defined as a sharp transition from one homogeneous region to another with a different scale and/or shape parameter. The proposed method, firstly, tests the homogeneity of the window. If it is found to be heterogeneous, the transition point is estimated and the threshold is set accordingly. It is known that usual CFAR methods suffer from target masking or increased false alarm rate when operated in non-Rayleigh or range-heterogeneous clutter. The proposed algorithm is shown to perform well in homogeneous or heterogeneous Weibull clutter environment and yield better performance than commonly known methods.
Keywords :
Weibull distribution; radar clutter; radar resolution; signal detection; CFAR methods; high-resolution radars; range-heterogeneous Weibull clutter detection; transition point; Algorithm design and analysis; Clutter; Detectors; Parameter estimation; Probability density function; Radar detection; Radar scattering; Shape; Testing; Weibull distribution;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radar Conference, 2007 IEEE
Conference_Location :
Boston, MA
ISSN :
1097-5659
Print_ISBN :
1-4244-0284-0
Electronic_ISBN :
1097-5659
Type :
conf
DOI :
10.1109/RADAR.2007.374239
Filename :
4250333
Link To Document :
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