A new solution to polarimetric radar discrimination problem

Abstract

A new solution is proposed for polarimetric radar discrimination problem by using cross-entropy to measure the difference between two scatterers. Two cross-entropy measures in favor of one scatterer over another are obtained for two independent probability mass functions that indicate the average scattering mechanism and the scattering randomness, respectively. These probability mass functions are formed by the modified similarity parameters and the eigenvalues of target coherency matrix. The cross-entropy measures utilize the polarimetric information efficiently to show the difference between scatterers. The advantage of using cross-entropy for solving polarimetric radar discrimination problem is demonstrated by the simulation results.