Calibration and Validation of Polarimetric ALOS2-PALSAR2

PALSAR2 polarimetric distortion matrix is measured using corner reflectors deployed in the Amazonian forest. The forest near geomagnetic equator provides ideal sites for assessment of L-band antenna parameters, at free Faraday rotation. Corner (CRs) rotation provide accurate estimation cross-talks contrast to biased measurements obtained with CRs significant extended Freeman–Van Zyl calibration method introduced and validated ALOS-PALSAR used PALSAR-2 parameters. Six datasets collected over rainforests (with CRs) are assess five beams (FP6-3 FP6-7) incidence angle varying from 25° 40°. It shown that highly isolated very low (lower than −40 dB). Finally, impact a on cross-talk CR discussed.