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Sensors 2017, 17(11), 2549;

Dimension-Factorized Range Migration Algorithm for Regularly Distributed Array Imaging

College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061, China
Institute of Automation, Shandong Academy of Sciences, Jinan 250014, China
Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
Author to whom correspondence should be addressed.
Received: 26 September 2017 / Revised: 27 October 2017 / Accepted: 2 November 2017 / Published: 5 November 2017
(This article belongs to the Special Issue Sensor Signal and Information Processing)
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The two-dimensional planar MIMO array is a popular approach for millimeter wave imaging applications. As a promising practical alternative, sparse MIMO arrays have been devised to reduce the number of antenna elements and transmitting/receiving channels with predictable and acceptable loss in image quality. In this paper, a high precision three-dimensional imaging algorithm is proposed for MIMO arrays of the regularly distributed type, especially the sparse varieties. Termed the Dimension-Factorized Range Migration Algorithm, the new imaging approach factorizes the conventional MIMO Range Migration Algorithm into multiple operations across the sparse dimensions. The thinner the sparse dimensions of the array, the more efficient the new algorithm will be. Advantages of the proposed approach are demonstrated by comparison with the conventional MIMO Range Migration Algorithm and its non-uniform fast Fourier transform based variant in terms of all the important characteristics of the approaches, especially the anti-noise capability. The computation cost is analyzed as well to evaluate the efficiency quantitatively. View Full-Text
Keywords: dimension-factorized; range migration algorithm; MIMO; regularly distributed array imaging dimension-factorized; range migration algorithm; MIMO; regularly distributed array imaging

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Guo, Q.; Wang, J.; Chang, T.; Cui, H.-L. Dimension-Factorized Range Migration Algorithm for Regularly Distributed Array Imaging. Sensors 2017, 17, 2549.

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