Evaluation Of Gf-3 Quad-Polarized Sar Imagery For Coastal Wetland Observation

The objective of this paper is to evaluate the potential of Gaofen (GF)-3 quad-polarized Synthetic Aperture Radar (SAR) for coastal wetland observation. The north coastal wetland of Zhejiang is selected as the test case, which is operated by on-site measure as reference results, matched up with three scenes of GF-3 Quad Polarized Strip I (QPSI) mode SAR imagery. Based on the collected datasets, three well-known methods of Pauli, Freeman and H/A/Alpha decomposition are performed to data processing, and the experimental results reveal that reliable observation capability of GF-3 quad-polarized SAR is verified. The promising preliminary results indicate that GF-3 is encouraging for operational implementation, especially for coastal wetland observation.