IEEE Trans Image Process - Three-dimensional near-field MIMO array imaging using range migration techniques.

Tópicos

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Resumo

This paper presents a 3-D near-field imaging algorithm that is formulated for 2-D wideband multiple-input-multiple-output (MIMO) imaging array topology. The proposed MIMO range migration technique performs the image reconstruction procedure in the frequency-wavenumber domain. The algorithm is able to completely compensate the curvature of the wavefront in the near-field through a specifically defined interpolation process and provides extremely high computational efficiency by the application of the fast Fourier transform. The implementation aspects of the algorithm and the sampling criteria of a MIMO aperture are discussed. The image reconstruction performance and computational efficiency of the algorithm are demonstrated both with numerical simulations and measurements using 2-D MIMO arrays. Real-time 3-D near-field imaging can be achieved with a real-aperture array by applying the proposed MIMO range migration techniques.

Resumo Limpo

paper present d nearfield imag algorithm formul d wideband multipleinputmultipleoutput mimo imag array topolog propos mimo rang migrat techniqu perform imag reconstruct procedur frequencywavenumb domain algorithm abl complet compens curvatur wavefront nearfield specif defin interpol process provid extrem high comput effici applic fast fourier transform implement aspect algorithm sampl criteria mimo apertur discuss imag reconstruct perform comput effici algorithm demonstr numer simul measur use d mimo array realtim d nearfield imag can achiev realapertur array appli propos mimo rang migrat techniqu

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