Processing math: 100%
Decoupling Between Different Polarization Channels of PolSAR Data | IEEE Journals & Magazine | IEEE Xplore

Decoupling Between Different Polarization Channels of PolSAR Data


Abstract:

Purer contributions obtained from three diagonal elements of the coherency matrix are expected. This makes polarimetric synthetic aperture radar (PolSAR) easier to unders...Show More

Abstract:

Purer contributions obtained from three diagonal elements of the coherency matrix are expected. This makes polarimetric synthetic aperture radar (PolSAR) easier to understand and to use in some applications, since the main information is aggregated into three mutually independent polarization channels. Therefore, we propose a method to decouple different polarization channels (DDPCs) in this letter. In such a case, all the nondiagonal elements of the coherency matrix are turned to zero, and three uncorrelated polarization channels are obtained. For this purpose, two rotation angles with physical meaning are proposed. They are responsible for rotating T_{12} to zero. Radarsat-2 data are used to validate the proposed method. The results show that the proposed rotation angles are effective for land-cover classification. Furthermore, three polarization channels obtained from the DDPC method can mitigate the overestimation of volume scattering power for oriented buildings.
Published in: IEEE Geoscience and Remote Sensing Letters ( Volume: 20)
Article Sequence Number: 4008105
Date of Publication: 27 July 2023

ISSN Information:

Funding Agency:


References

References is not available for this document.