Compact Polarimetric Observation using Phased Array Antenna and Its Case Study for PALSAR

This paper presents the study of compact polarimetric (CP) mode for SAR using the phased array antenna. CP mode can be realized without a special mechanism, only with two separate parts of the antenna in elevation which transmits different polarization respectively. The reconstruction algorithm processes the change of the phase between H- and V-polarizations. And the case study shows the feasibility, examples of the operation and the possible performance of CP mode using ALOS/PALSAR on orbit.