Three-Dimensional Near-Field MIMO Array Imaging Using Range Migration Techniques

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 t...

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Bibliographic Details
Published in:IEEE transactions on image processing 2012-06, Vol.21 (6), p.3026-3033
Main Authors: Xiaodong Zhuge, Yarovoy, A. G.
Format: Article
Language:English
Subjects:
Apertures
Applied sciences
Arrays
Exact sciences and technology
Frequency domain analysis
Image processing
Image reconstruction
Imaging
Information, signal and communications theory
Interpolation
MIMO
Multiple-input multiple-output (MIMO)
near-field imaging
range migration
Sampling, quantization
Signal and communications theory
Signal processing
sparse array
Telecommunications and information theory
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Summary: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.
ISSN:1057-7149
1941-0042
DOI:10.1109/TIP.2012.2188036