A new polarimetric calibration method is proposed based on scattering
matrix decomposition, via Pauli matrices. This scheme operates with th
e Pauli target vectors instead of the scattering matrix. The base elem
ents of the Pauli target vectors are the vectors corresponding to the
usual calibrators such as sphere, dihedral and 45 degrees rotated dihe
dral. This fact allows direct and easy calculation of the error coeffi
cients. An experimental validation of this method is presented.