Polarimetric Analysis of RFI in L-Band SAR System

Synthetic Aperture Radar (SAR) has been sharing its radio band with other systems. Similar to recent Dynamic Spec-trum Sharing (DSS) in switching from 4G to 5G teleCommunication system, future SAR will be required to share the spectrum with more systems than ever. However, current state-of-the-art Radio Frequency Interference (RFI) detection and suppression methods are mostly based on the spec-trum analysis, which survey the amplitude of the signals in the frequency domain and extract anomalistic signals from backscattered echoes. In order to enable further dynamic and coherent RFI detection and suppression, we performed a polarimetric analysis of SAR raw data and classification of the interfering signals in polarimetric domain.