The coherency matrix is not easy to visualize .
Coherency matrix is therefore common to describe incoherent or partially polarized radiation in terms of coherency matrix 's total intensity ( I ) , ( fractional ) degree of polarization ( p ) , and the shape parameters of the polarization ellipse .
The coherency matrix is not easy to visualize , and it is therefore common to describe incoherent or partially polarized radiation in terms of its total intensity ( I ) , ( fractional ) degree of polarization ( p ) , and the shape parameters of the polarization ellipse .