QUASI-MILLIMETER WAVE TECHNIQUE USED FOR IMAGE OF WOOD | Zendy

Dan Zhang | Zendy; Chujing Zong | Zendy; A. Mase | Zendy

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QUASI-MILLIMETER WAVE TECHNIQUE USED FOR IMAGE OF WOOD

Author(s) -

Dan Zhang,

Chujing Zong,

A. Mase

Publication year - 2018

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl18021902

Subject(s) - extremely high frequency , millimeter , image (mathematics) , materials science , environmental science , physics , optics , computer science , artificial intelligence

A quasi-millimeter electromagnetic wave with the frequency of 22–30 GHz is applied to detect knots and holes in wood samples. It has better spatial resolution while keeping good transmission properties comparied to microwave region used in the previous experiments. The images of knots and holes in wood are clearly obtained by analyzing the phase and amplitude of the transmitted wave. And the phase measurement results are all better than amplitude results according to phase values changing much more than amplitude.

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