Coherent and noncoherent polarimetric radar receivers completely canceling the partially polarized clutter

Two methods of complete canceling the partially polarized clutter have been described. The first one, called a coherent method, is based on producing a completely polarized receiving vector orthogonal to the instantaneous Jones vector of clutter. The other, incoherent method employs three four-vectors perpendicular to the Stokes four-vector of clutter to build the receiving linear combination, closest to the undisturbed signal