Article ID: 2020XBL0091
In this letter, we present the first demonstration of spectral domain polarimetric decomposition concept with airborne circular synthetic aperture radar (CSAR) dataset. In the CSAR systems, radar-carrying aircraft moves along a circular path which encloses the desired target area. The CSAR image contains the scattering characteristics of the target with respect to the azimuth angle, and it can be retrieved via transforming the spatial domain image into its spectral domain representation. Furthermore, the application of polarimetric decomposition to the spectral domain CSAR image provides an additional information about the polarimetric scattering mechanisms. A publicly released airborne polarimetric CSAR dataset is used for the demonstration.