Prediction and detection of Faraday rotation in ALOS PALSAR data

Faraday rotation can degrade the quality of low- frequency spaceborne SAR data, making an estimation and correction of these effects a prerequisite for data quality continuity. In this paper, methods for predicting and estimating Faraday rotation are presented and tested on ALOS/PALSAR data. A first example for unambiguous detection of Faraday rotation in SAR is shown. In addition, the improvement after correcting for FR is proven using a real data example.