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International Journal of Antennas and Propagation
Volume 2013, Article ID 519296, 5 pages
Research Article

Ship Detection in High-Resolution Dual-Polarization SAR Amplitude Images

School of Electronics Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073, China

Received 31 October 2012; Accepted 8 January 2013

Academic Editor: Deren Li

Copyright © 2013 Gui Gao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A constant false alarm rate (CFAR) detecting method for ships in high-resolution dual-polarization synthetic aperture radar (SAR) amplitude images has been proposed in this paper. First, by the production of amplitude images from two polarimetric channels, a novel detector simply called the PMA detector has been constructed. We testified that the PMA detector could improve the signal-to-clutter ratio (SCR) and make the discrimination of a ship from clutter more easily. Second, the PMA detector’s statistical model has been described by the well-known distribution when facing complex sea background. The experiments performed on measured dual-polarization TerraSAR-X images demonstrate the good performance of the proposed CFAR detecting method.