TY - JOUR
T1 - Millimeter-Wave Imaging via Circular-Arc MIMO Arrays
AU - Li, Shiyong
AU - Wang, Shuoguang
AU - Wu, Shiyou
AU - Hoorfar, Ahmad
AU - An, Qiang
AU - Xing, Guangnan
AU - Zhao, Meng
AU - Zhao, Guoqiang
N1 - Publisher Copyright:
© 1963-2012 IEEE.
PY - 2023/7/1
Y1 - 2023/7/1
N2 - Millimeter-wave (MMW) imaging has a promising prospect in application of concealed weapons detection. To that end, we propose a circular-arc multiple-input-multiple-output (MIMO) array scheme with uniformly spaced transmit and receive antennas along the horizontal-arc direction while scanning along the vertical direction. The antenna beams of the circular-arc MIMO array can provide more uniform coverage of the imaging scene than those of linear or planar MIMO arrays, which is especially important for the detection of concealed weapons carried by personnel. Furthermore, a near-field 3-D imaging technique, based on spatial frequency-domain processing, is presented together with a detailed analysis of sampling criteria and resolutions. Numerical and experimental results are provided to demonstrate the performance of the proposed method in comparison with those of the currently most used array schemes and imaging algorithms.
AB - Millimeter-wave (MMW) imaging has a promising prospect in application of concealed weapons detection. To that end, we propose a circular-arc multiple-input-multiple-output (MIMO) array scheme with uniformly spaced transmit and receive antennas along the horizontal-arc direction while scanning along the vertical direction. The antenna beams of the circular-arc MIMO array can provide more uniform coverage of the imaging scene than those of linear or planar MIMO arrays, which is especially important for the detection of concealed weapons carried by personnel. Furthermore, a near-field 3-D imaging technique, based on spatial frequency-domain processing, is presented together with a detailed analysis of sampling criteria and resolutions. Numerical and experimental results are provided to demonstrate the performance of the proposed method in comparison with those of the currently most used array schemes and imaging algorithms.
KW - Circular-arc multiple-input - multiple-output (MIMO) array
KW - millimeter-wave (MMW) imaging
KW - near field
KW - spatial frequency-domain processing
UR - http://www.scopus.com/inward/record.url?scp=85148460992&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2023.3239803
DO - 10.1109/TMTT.2023.3239803
M3 - Article
AN - SCOPUS:85148460992
SN - 0018-9480
VL - 71
SP - 3156
EP - 3172
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 7
ER -