Determination of the characteristic polarization states of the target scattering matrix [S(AB)] for the coherent, monostatic, and reciprocal propagation space
Abstract
A problem originating in radar polarimetry is considered for which the radar target is to be characterized by its coherent polarization state properties, given complete coherent backscattering scattering matrix data sets at one frequency and for one target aspect angle. For the monostatic reciprocal case, it is shown that there exist in total five pairs of characteristic polarization states. These include the orthogonal crosspolarization null and copolarization maximum state pairs and the orthogonal cross polarization maximum state pairs, as well as a newly identified pair, the orthogonal crosspolarization saddle point extrema which are normal to the plane spanned by the other four pairs. With this complete and unique mathematical description of Huynen's polarization fork concept, it is now possible to study the polarimetric radar target optimization problem more rigorously.
 Publication:

Polarimetry: Radar, infrared, visible, ultraviolet, and Xray
 Pub Date:
 October 1990
 DOI:
 10.1117/12.22053
 Bibcode:
 1990SPIE.1317..166X
 Keywords:

 Coherent Radar;
 Polarimetry;
 Polarization Characteristics;
 Radar Scattering;
 Backscattering;
 Matrices (Mathematics);
 Optimization;
 Radar Targets;
 Communications and Radar