Near-Field Single-Frequency Millimeter-Wave 3-D Imaging via Multifocus Image Fusion

Handan Jing, Shiyong Li*, Xiaoxi Cui, Guoqiang Zhao, Houjun Sun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number9311762
Pages (from-to)298-302
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume20
Issue number3
DOIs
Publication statusPublished - Mar 2021

Keywords

  • Millimeter-wave (MMW) imaging
  • minimum entropy
  • multifocus image fusion
  • single-frequency

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