A novel method for constructing the end-to-end calibration matrix of fully polarimetric radiometer

In this paper, a novel method for constructing the end-to-end calibration matrix of the fully polarimetric radiometer is proposed. In this method, the fully polarimetric radiometer is divided into two independent systems, the antenna system and the receiver system. Construct the local transfer matrix equations of the two parts respectively, and make them combined, then the end-to-end calibration matrix of the fully polarimetric radiometer could be obtained. The transfer matrix of the antenna system could be given in the form of analytical expression, and the transfer matrix of the receiver system could be obtained by a local calibration using the correlated noise calibration standard (CNCS). The end-to-end calibration matrix obtained by this method, is an effective complement and validated to the one obtained by the traditional global calibration method. Meanwhile, in this method, the complicated calibration source is not needed, so the calibration cost could be reduced effectively.