Abstract
The utility of PALSAR polarimetric mode data has a high potential for forest biomass estimation. However, it is necessary to calibrate the polarimetric SAR data both in terms of amplitude and phase for this purpose. Therefore, we emphasized the phase calibration and expanded the application of Klein's algorithm to the general calibration site in this paper. A method for extracting the pixels from the observed image to satisfy the assumptions of Klein's algorithm was also developed. In addition, Faraday rotation is compensated for as the remainder of distortion of the transmission path included in the polarization impurity and channel imbalance in the SAR system. One frame of the JPL/AIRSAR L-band polarimetric mode image was used to evaluate the calibration method. Two known trihedral corner reflectors were deployed on the pasture land in the image. Using this grass site, we obtained an acceptable result for the calibration.
