Weibull Distribution and K-Distribution of Sea Clutter Observed by X-Band Radar and Analyzed by AIC

Shuji SAYAMA  Matsuo SEKINE  

IEICE TRANSACTIONS on Communications   Vol.E83-B   No.9   pp.1978-1982
Publication Date: 2000/09/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Advances in Radar Systems)
Weibull distribution,  K-distribution,  X-band radar,  AIC,  

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In order to observe temporal distribution of sea clutter, radar echoes were taken from high sea state 7 at a fixed azimuth angle of 317. It is shown that the sea-clutter amplitudes obey the Weibull distribution at a grazing angle of 3.9, and obey both the Weibull distribution and K-distribution at grazing angles of 7.5 and 61.4. As the grazing angle increases, the shape parameters of Weibull distribution and K-distribution increase with both the distributions themselves tending to be closer to the Rayleigh distribution.