J4 ›› 2011, Vol. 38 ›› Issue (1): 90-95.doi: 10.3969/j.issn.1001-2400.2011.01.015

• Original Articles • Previous Articles     Next Articles

Polarimetric SAR filtering method to preserve scattering characteristics

GUO Rui;LIU Yanyang;ZANG Bo;XING Mengdao   

  1. (National Lab. of Radar Signal Processing, Xidian Univ., Xi'an  710071, China)
  • Received:2010-01-04 Online:2011-02-20 Published:2011-04-08
  • Contact: GUO Rui E-mail:gr2003@126.com

Abstract:

Most of the speckle filtering methods can not preserve the scattering characteristics of  the PolSAR image because of their being based on the statistic model. To solve this problem, here we propose a speckle filtering method to preserve polarimetric scattering characteristics. Firstly, by extracting scattering characteristics from the PolSAR image, we mark different sorts with different markers; then, referring to the different markers, an adaptive slipping window is used to compute the filtering parameter; finally, measured data are applied in the filtering experiment using the filtering parameter. From the analysis, we have proved the effectiveness of our method.

Key words: polarimetric SAR (PolSAR), polarimetric speckle filtering, scattering characteristic, adaptive window