Efficient Near-Field Imaging Using Cylindrical MIMO Arrays

Shiyong Li; Shuoguang Wang; Moeness G. Amin; Guoqiang Zhao

doi:10.1109/TAES.2021.3079555

Efficient Near-Field Imaging Using Cylindrical MIMO Arrays

Shiyong Li^*, Shuoguang Wang, Moeness G. Amin, Guoqiang Zhao

^*此作品的通讯作者

集成电路与电子学院

科研成果: 期刊稿件 › 文章 › 同行评审

24 引用（Scopus）

摘要

Multiple-input-multiple-output (MIMO) array-based millimeter-wave (MMW) imaging has a tangible prospect in applications of concealed weapons detection. A near-field imaging algorithm based on wavenumber domain processing is proposed for a cylindrical MIMO array scheme with uniformly spaced transmit and receive antennas over both the vertical and horizontal-arc directions. The spectrum aliasing associated with the proposed MIMO array is analyzed through a zero-filling discrete-time Fourier transform. The analysis shows that an undersampled array can be used in recovering the MMW image by a wavenumber domain algorithm. The requirements for the antenna interelement spacing of the MIMO array are delineated. Numerical simulations as well as comparisons with the backprojection algorithm are provided to demonstrate the effectiveness of the proposed method.

源语言	英语
页（从-至）	3648-3660
页数	13
期刊	IEEE Transactions on Aerospace and Electronic Systems
卷	57
期	6
DOI	https://doi.org/10.1109/TAES.2021.3079555
出版状态	已出版 - 1 12月 2021

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title = "Efficient Near-Field Imaging Using Cylindrical MIMO Arrays",

abstract = "Multiple-input-multiple-output (MIMO) array-based millimeter-wave (MMW) imaging has a tangible prospect in applications of concealed weapons detection. A near-field imaging algorithm based on wavenumber domain processing is proposed for a cylindrical MIMO array scheme with uniformly spaced transmit and receive antennas over both the vertical and horizontal-arc directions. The spectrum aliasing associated with the proposed MIMO array is analyzed through a zero-filling discrete-time Fourier transform. The analysis shows that an undersampled array can be used in recovering the MMW image by a wavenumber domain algorithm. The requirements for the antenna interelement spacing of the MIMO array are delineated. Numerical simulations as well as comparisons with the backprojection algorithm are provided to demonstrate the effectiveness of the proposed method.",

keywords = "Backprojection (BP) algorithm, millimeter-wave (MMW) imaging, multiple-input-multiple-output (MIMO) array, spectrum aliasing, wavenumber domain algorithm",

author = "Shiyong Li and Shuoguang Wang and Amin, {Moeness G.} and Guoqiang Zhao",

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AU - Amin, Moeness G.

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PY - 2021/12/1

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N2 - Multiple-input-multiple-output (MIMO) array-based millimeter-wave (MMW) imaging has a tangible prospect in applications of concealed weapons detection. A near-field imaging algorithm based on wavenumber domain processing is proposed for a cylindrical MIMO array scheme with uniformly spaced transmit and receive antennas over both the vertical and horizontal-arc directions. The spectrum aliasing associated with the proposed MIMO array is analyzed through a zero-filling discrete-time Fourier transform. The analysis shows that an undersampled array can be used in recovering the MMW image by a wavenumber domain algorithm. The requirements for the antenna interelement spacing of the MIMO array are delineated. Numerical simulations as well as comparisons with the backprojection algorithm are provided to demonstrate the effectiveness of the proposed method.

AB - Multiple-input-multiple-output (MIMO) array-based millimeter-wave (MMW) imaging has a tangible prospect in applications of concealed weapons detection. A near-field imaging algorithm based on wavenumber domain processing is proposed for a cylindrical MIMO array scheme with uniformly spaced transmit and receive antennas over both the vertical and horizontal-arc directions. The spectrum aliasing associated with the proposed MIMO array is analyzed through a zero-filling discrete-time Fourier transform. The analysis shows that an undersampled array can be used in recovering the MMW image by a wavenumber domain algorithm. The requirements for the antenna interelement spacing of the MIMO array are delineated. Numerical simulations as well as comparisons with the backprojection algorithm are provided to demonstrate the effectiveness of the proposed method.

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Efficient Near-Field Imaging Using Cylindrical MIMO Arrays

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