TY - JOUR
T1 - Near-Field Single-Frequency Millimeter-Wave 3-D Imaging via Multifocus Image Fusion
AU - Jing, Handan
AU - Li, Shiyong
AU - Cui, Xiaoxi
AU - Zhao, Guoqiang
AU - Sun, Houjun
N1 - Publisher Copyright:
© 2002-2011 IEEE.
PY - 2021/3
Y1 - 2021/3
N2 - The wideband radar system is usually exploited to obtain the 3-D image of the target under test. However, the wide bandwidth increases the system complexity and cost. Emerging techniques, such as the reconfigurable reflectarrays, reconstruct a near 3-D image via using single-frequency millimeter-wave (MMW) and near-field focusing of the beam, which greatly simplifies the system design, whereas the near-field focusing can only achieve a poor range resolution and a limited depth of focus. In this letter, we propose a multifocus image fusion method based on the criterion of minimum entropy, which can further be utilized for any kind of the MMW imaging system working at a single frequency. Simulations and experiments are presented to verify the effectiveness of the proposed method.
AB - The wideband radar system is usually exploited to obtain the 3-D image of the target under test. However, the wide bandwidth increases the system complexity and cost. Emerging techniques, such as the reconfigurable reflectarrays, reconstruct a near 3-D image via using single-frequency millimeter-wave (MMW) and near-field focusing of the beam, which greatly simplifies the system design, whereas the near-field focusing can only achieve a poor range resolution and a limited depth of focus. In this letter, we propose a multifocus image fusion method based on the criterion of minimum entropy, which can further be utilized for any kind of the MMW imaging system working at a single frequency. Simulations and experiments are presented to verify the effectiveness of the proposed method.
KW - Millimeter-wave (MMW) imaging
KW - minimum entropy
KW - multifocus image fusion
KW - single-frequency
UR - http://www.scopus.com/inward/record.url?scp=85099094124&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2020.3048478
DO - 10.1109/LAWP.2020.3048478
M3 - Article
AN - SCOPUS:85099094124
SN - 1536-1225
VL - 20
SP - 298
EP - 302
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
IS - 3
M1 - 9311762
ER -