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A Modified Omega-K Algorithm for Near-Field MIMO Array-Based 3-D Reconstruction
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DOI：10.1109/LGRS.2018.2847304.png)
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Abstract
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A modified omega-K algorithm for planar multipleinput- multiple-output (MIMO) array-based 3-D image reconstruction is proposed. By applying several proper approximations in wavenumber domain, the complex and time-consuming bistatic Stolt transformation within the traditional MIMO-omega K is changed into a relatively simple monostatic one, and therefore the amount of the interpolation given for the data is greatly reduced. Combining with multidimensional fast Fourier transformation, extremely high computation efficiency can be achieved. Implementation details are well described. The imaging accuracy and the high efficiency of the algorithm are demonstrated by a near-field imaging experiment with a flat mannequin target based on a planar MIMO array radar.
Keywords:
3-D imaging
bistatic
multiple-input-multiple-output (MIMO)
omega-K (omega K)
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