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      Three-dimensional near-field MIMO array imaging using range migration techniques.

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          Abstract

          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.

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          Author and article information

          Journal
          IEEE Trans Image Process
          IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
          Institute of Electrical and Electronics Engineers (IEEE)
          1941-0042
          1057-7149
          Jun 2012
          : 21
          : 6
          Affiliations
          [1 ] FEI Company, 5651 Eindhoven, the Netherlands. zhugexd@gmail.com
          Article
          10.1109/TIP.2012.2188036
          22345541
          beb14397-98b5-4e34-9ab9-cc05e40ae102
          History

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