Polarimetry concept applied to high resolution electromagnetic radar imaging

Abstract

High-resolution electromagnetic radar imaging is a process allowing the discrimination of a radar target by studying the location of its scatterers. It is well known that the knowledge of a simple scalar number is not adequate to obtain a satisfactory radar image. The authors propose a polarimetry concept in the radar imaging domain for improving the discrimination of radar targets. Using this concept, it is possible to determine, without acting physically on the antennas, the optimal transmitted and received polarization vector to obtain an optimal radar image, thus allowing better radar target discrimination.<>