Print Email Facebook Twitter 3-D Short-Range Imaging with Irregular MIMO Arrays Using NUFFT-Based Range Migration Algorithm Title 3-D Short-Range Imaging with Irregular MIMO Arrays Using NUFFT-Based Range Migration Algorithm Author Wang, J. (TU Delft Microwave Sensing, Signals & Systems) Aubry, P.J. (TU Delft Microwave Sensing, Signals & Systems) Yarovoy, Alexander (TU Delft Microwave Sensing, Signals & Systems) Date 2020 Abstract 3-D imaging with irregular planar multiple-input-multiple-output (MIMO) arrays is discussed. Due to signal acquisition on irregular spatial sampling grids by using these antenna arrays, the fast Fourier transform (FFT)-based imaging algorithms cannot readily be used for image formation. To avoid the application of computationally intensive coherent summation algorithms such as filtered backprojection or Kirchhoff migration, we propose a nonuniform FFT (NUFFT)-based MIMO Range Migration Algorithm (i.e., NUFFT-based MIMO-RMA) for efficient microwave imaging. The algorithm exploits NUFFT to reconstruct the wavenumber-domain spectra related to each Fourier frequency. It is generic and applicable to 3-D imaging with irregular planar MIMO arrays. The effects of irregular spatial sampling and signal bandwidth on the imaging performance and computational efficiency of the proposed algorithm are analyzed. Finally, some numerical simulations and experimental results are presented to demonstrate the performance of the proposed imaging algorithm. Subject 3-D imagingmicrowave imagingmultiple-input-multiple-output (MIMO) arraynonuniform fast Fourier transform (NUFFT)range migration To reference this document use: http://resolver.tudelft.nl/uuid:45deadb1-18cc-4e3e-97c2-b6baab2a3f46 DOI https://doi.org/10.1109/TGRS.2020.2966368 Embargo date 2020-07-29 ISSN 0196-2892 Source IEEE Transactions on Geoscience and Remote Sensing, 58 (7), 4730-4742 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2020 J. Wang, P.J. Aubry, Alexander Yarovoy Files PDF 08974215.pdf 12.66 MB Close viewer /islandora/object/uuid:45deadb1-18cc-4e3e-97c2-b6baab2a3f46/datastream/OBJ/view