Title :
Polarimetric characteristics of ships on RADARSAT-2 data
Author :
Wang, Bo ; Chapron, Bertrand ; Mercier, Grégoire ; Garello, René ; He, Ming-Xia
Author_Institution :
Ocean Remote Sensing Inst., Ocean Univ. of China, Qingdao, China
Abstract :
In the present paper, Equivalent Number of Looks (ENL) are estimated for quad polarization RADARSAT-2 SLC data, and used to define a detection method. The method is using a threshold two-tuple, combining a polarimetric ENL estimator with CFAR to reveal ship region of interesting (ROI). The ROIs are then further investigated by polarization synthesis. An optimal VV/HH ratio was calculated for both ship and speckle, and a Polarization Orientation Angle (PAO) based analysis for microwave backscatter ship ROIs has further been carried out.
Keywords :
backscatter; radar polarimetry; ships; synthetic aperture radar; CFAR; RADARSAT-2 Data; ROI; microwave backscatter ship; polarimetric ENL estimator; polarimetric SAR; polarimetric characteristics; polarization orientation angle; region of interesting; synthetic aperture radar; threshold two-tuple; Covariance matrix; Marine vehicles; Scattering; Sea measurements; Sea surface;
Conference_Titel :
OCEANS, 2011 IEEE - Spain
Conference_Location :
Santander
Print_ISBN :
978-1-4577-0086-6
DOI :
10.1109/Oceans-Spain.2011.6003583
