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      A Method for Discrimination of Ship Target and Azimuth Ambiguity in Multi-polarimetric SAR Imagery

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          Abstract

          Aiming to remove the false alarm caused by azimuth ambiguity in SAR imagery during the process of ship target detection, a method based on the improved H/α/Wishart unsupervised classification is proposed. First, the scattering echo peak zone of target is extracted and the H/α classification results are treated as the initial cluster centers. Second, the ship target and azimuth ambiguity are identified by comparing and analyzing the structure of each region. It is showed by experiment that the method can detect ships based on the azimuth ambiguity; thus the false alarm rate in SAR-based ship detection is reduced.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 February 2015
          : 4
          : 1
          : 84-92
          Affiliations
          [1 ] Department of Electronic and Information Engineering, Naval Aeronautical and Astronautical University
          [2 ] Department of Basic Experiment, Naval Aeronautical and Astronautical University
          Article
          d166fff19359464d83bb5fdf6eaf17b3
          10.12000/JR14147

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Categories
          Technology (General)
          T1-995

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