A new fast 2-D superresolution imaging algorithm

Abstract

A novel method is proposed for reconstructing the 2-D scattering centres of radar target, research the frequency scatter model of electromagnetic scattering, we resolve the problem by extracting two 1-D scattering centres parameter instead of extracting directly 2-D scattering centres parameter, separately estimate the 1-D scattering centres in range dimension and cross dimension using conjugate unitary Root-MUSIC algorithm, group them and attain all possible spatial frequency pairs, then the unveracious frequency pairs are eliminated by spatial filtering, achieve the 2-D scattering centres parameter.