Modified GIT model for predicting wind-speed behavior of low-grazing-angle radar sea clutter

doi:10.1088/1674-1056/23/10/108402

Abstract A modified GIT model for describing the variational trend of mean clutter reflectivity as a function of wind speed is proposed. It uses two slope adjustment factors and two critical wind-speed factors to define and adjust the increasing slope of reflectivity with respect to wind speed. In addition, it uses a constant factor to compensate the overall amplitude of clutter reflectivity. The performance of the modified GIT model has been verified on the basis of the L-band low-grazing-angle radar sea clutter data. The results are in good agreement with the experimental data, indicating that the model is more effective in predicting the wind-speed behavior of clutter reflectivity than the conventional GIT model, especially for lower and higher wind speeds. We believe that the proposed model can provide deeper insights into the relationship between radar sea clutter reflectivity and sea state conditions.

Keywords: GIT model low grazing angle radar sea clutter

Received: 25 April 2014
Revised: 26 May 2014
Accepted manuscript online:

PACS:	84.40.Xb	(Telemetry: remote control, remote sensing; radar)
	07.50.Qx	(Signal processing electronics)
	02.50.Ey	(Stochastic processes)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61172031).

Corresponding Authors: Zhang Yu-Shi
E-mail: zhang10695@126.com

About author: 84.40.Xb; 07.50.Qx; 02.50.Ey

Cite this article:

Zhang Yu-Shi (张玉石), Zhang Jin-Peng (张金鹏), Li Xin (黎鑫), Wu Zhen-Sen (吴振森) Modified GIT model for predicting wind-speed behavior of low-grazing-angle radar sea clutter 2014 Chin. Phys. B 23 108402


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Modified GIT model for predicting wind-speed behavior of low-grazing-angle radar sea clutter

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