A Side-Lobe Suppression Method Based on Coherence Factor for Terahertz Array Imaging | Zendy

Yanwen Jiang | Zendy; Yuliang Qin | Zendy; Hongqiang Wang | Zendy; Bin Deng | Zendy; Kang Liu | Zendy; Binbin Cheng | Zendy

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A Side-Lobe Suppression Method Based on Coherence Factor for Terahertz Array Imaging

Author(s) -

Yanwen Jiang,

Yuliang Qin,

Hongqiang Wang,

Bin Deng,

Kang Liu,

Binbin Cheng

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2799180

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

Terahertz (THz) arrays can be used to improve the data acquisition speed considerably in real-time imaging applications. However, the THz array imaging usually suffers from the side-lobe artifacts, which leads to a severe decline in the image quality. In this paper, a side-lobe suppression method based on coherence factor is proposed to improve the image quality. The influences of signal-to-noise ratio on the imaging results are analyzed by simulation. Furthermore, the results based on the real-world data validate the effectiveness of the proposed method, which indicates that the side-lobe is suppressed by 29 dB. This paper can benefit the development of THz imaging technique and its applications in real-time imaging realms.

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