Characteristic Radar Target Polarization State Theory for the Coherent Monostaticand Reciprocal Case Using the Generalized Polarization Transformation Ratio Formulation

摘要

The target characteristic polarization state theory for the monostatic reciprocaland coherent case is developed in greater detail, emphasizing the transformation of the scattering matrix under the change of basis transformation via the unitary transformation matrix, expressed in terms of the generalized polarization ratio formulations. Kennaugh's and Huynen's theories are verified and it is shown that there exist in total five pairs of characteristic polarization state for the symmetric scattering matrix case of which two pairs, the cross-polarization null and co-polarization max pairs are identical. The one additional pair corresponds to cross-polarization power saddlepoints and it complements the optimal polarization state theory of Huynen and re-establishes his 'polarization fork' concept. (Author)