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Ionospheric signal distortions are commonplace in low-frequency space-borne SAR observations and can lead to the degradation of SAR data quality and data consistency if no signal compensation is applied. In this paper we will give an overview of the problem of ionospheric influence in SAR, PolSAR, and InSAR data. We will characterize the spatiotemporal signal properties of ionospheric signals, introduce...
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...
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