RFI Detection Using Degree of Polarization for Polarimetric Synthetic Aperture Radar

Yu Hashimoto, Ryo Natsuaki, Akira Hirose

Abstract: In microwave remote sensing, radio frequency interference (RFI), which is caused by other systems such as radars, telecommunications, and navigation systems, has been a serious problem. RFI generates haze-like or linear-pattern artifacts in synthetic aperture radar (SAR) images and degrades their quality. Therefore, it is mandatory to detect and mitigate RFI properly. In this paper, we propose an RFI-detection method using degree of polarization (DoP) which focuses on the difference of polarization states between RFI and useful signals.