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      Freeman-Durden Decomposition with Oriented Dihedral Scattering

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          Abstract

          In this paper, when the azimuth direction of polarimetric Synthetic Aperature Radars (SAR) differs from the planting direction of crops, the double bounce of the incident electromagnetic waves from the terrain surface to the growing crops is investigated and compared with the normal double bounce. Oriented dihedral scattering model is developed to explain the investigated double bounce and is introduced into the Freeman-Durden decomposition. The decomposition algorithm corresponding to the improved decomposition is then proposed. The airborne polarimetric SAR data for agricultural land covering two flight tracks are chosen to validate the algorithm; the decomposition results show that for agricultural vegetated land, the improved Freeman-Durden decomposition has the advantage of increasing the decomposition coherency among the polarimetric SAR data along the different flight tracks.

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          Author and article information

          Journal
          Journal of Radars
          Chinese Academy of Sciences
          01 October 2014
          : 3
          : 5
          : 574-582
          Affiliations
          [1 ] Institute of Electronics, Chinese Academy of Sciences
          Article
          475c1e6f61af4a0dab66b0a46946da19
          10.3724/SP.J.1300.2014.14057

          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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