Quasar SBK accurate internal calibration

A new compact fully polarimetric Ku band SAR system (SBK) is being developed by INTA radar Laboratory as an advanced payload for QUASAR project, which involves INTA new SAR developments for small platforms and UAV´s. As an operative system, SBK shall allow precise calibration of the obtained data in order to achieve high products quality. The present paper shows SBK internal calibration concept focusing on internal calibration facility description, on ground characterization task overview and in flight calibration method. Furthermore, internal calibration accuracy estimation based on first prototypes measurements is also presented.