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Efficient Wavenumber Domain Imaging Approach for Boundary Subarray-Based Multiplane MIMO Array
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DOI：10.1109/TAES.2025.3620793.png)
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Abstract
En 中文
In this article, an efficient wavenumber-domain algorithm is developed for the millimeter-wave imaging scheme with boundary subarray (BSA)-based multiplane multiple-input–multiple-output (MIMO) arrays. Compared to the conventional planar MIMO arrays, the BSA-based multiplane MIMO arrays exhibit superior detection performance of targets. Moreover, the data amount of BSA-based multiplane MIMO arrays can be greatly reduced by restricting the transmit–receive signal channels within each BSA. To enhance the imaging efficiency of this scheme, we formulate a data transformation from each BSA of the multiplane MIMO system to the cylindrical monostatic array (CMA), thereby avoiding the high-dimensional processing and offering an efficient solution for nonuniformly sampled signal processing. Based on the analysis of the error induced by BSA-to-CMA transformations, the independent phase calibration is performed for each BSA, mitigating the degradation of image quality. Simulations and experimental results validate the fast imaging and high-resolution advantages of the proposed approach.
Keywords:
Boundary subarray (BSA)
millimeter-wave (MMW) imaging
multiplane array
multiple-input–multiple-output (MIMO)
Journal
IF:
5.7
Papers:
682
Citations:
2.4W
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