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Supervised SOM Based ATR Method with Circular Polarization Basis of Full Polarimetric Data

Shouhei OHNO, Shouhei KIDERA, Tetsuo KIRIMOTO

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Summary :

Satellite-borne or aircraft-borne synthetic aperture radar (SAR) is useful for high resolution imaging analysis for terrain surface monitoring or surveillance, particularly in optically harsh environments. For surveillance application, there are various approaches for automatic target recognition (ATR) of SAR images aiming at monitoring unidentified ships or aircraft. In addition, various types of analyses for full polarimetric data have been developed recently because it can provide significant information to identify structure of targets, such as vegetation, urban, sea surface areas. ATR generally consists of two processes, one is target feature extraction including target area determination, and the other is classification. In this paper, we propose novel methods for these two processes that suit full polarimetric exploitation. As the target area extraction method, we introduce a peak signal-to noise ratio (PSNR) based synthesis with full polarimetric SAR images. As the classification method, the circular polarization basis conversion is adopted to improve the robustness especially to variation of target rotation angles. Experiments on a 1/100 scale model of X-band SAR, demonstrate that our proposed method significantly improves the accuracy of target area extraction and classification, even in noisy or target rotating situations.

Publication
IEICE TRANSACTIONS on Communications Vol.E98-B No.12 pp.2520-2527
Publication Date
2015/12/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E98.B.2520
Type of Manuscript
PAPER
Category
Sensing

Authors

Shouhei OHNO
  NEC Corpolation
Shouhei KIDERA
  The University of Electro-Communications
Tetsuo KIRIMOTO
  The University of Electro-Communications

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