Title :
Polarimetric characters extraction research of Kelvin wakes on PolSAR image
Author :
Wu, Peng ; Wang, Jun ; Wang, Wenguang ; Sun, Jinping
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing, China
Abstract :
In this paper, based on the difference of scattering mechanism between Kelvin wakes and sea clutter in SAR images, with multiband and full polarization, the polarimetric characters of the Kelvin wakes are extracted and studied in order to detection or identification for the wakes. Besides proposing that simple co-polarized ratio can strengthen Kelvin wakes, this paper focuses on the application of polarimetric decomposition, extracting polarization entropy which represents the Kelvin wakes characters more completely, and gives its physical significance. Based on the polarimetric characters mentioned above, this paper expounds the methods to identify Kelvin wakes. The identifying conclusion demonstrates that if it could not confirm the suspected target only in the method of traditional Radon transform, the method mentioned in this paper is useful.
Keywords :
Radon transforms; feature extraction; radar imaging; radar polarimetry; wakes; Kelvin wake; PolSAR image; Radon transform; polarimetric character extraction; polarimetric decomposition; polarization entropy; scattering mechanism; sea clutter; synthetic aperture radar; Kelvin; Marine vehicles; Radar imaging; Remote sensing; Scattering; Spaceborne radar; Transforms; PolSAR; Polarimetric decomposition; Radon transform; Wake detection;
Conference_Titel :
Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-9172-8
DOI :
10.1109/RSETE.2011.5964545