Open AccessExperimental research on imaging of precession targets with THz radar
Author(s) -
Yang Qi,
Deng Bin,
Wang Hongqiang,
Qin Yuliang
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.3494
Subject(s) - terahertz radiation , radar imaging , precession , radar , optics , inverse synthetic aperture radar , microwave imaging , physics , microwave , synthetic aperture radar , remote sensing , computer science , geology , telecommunications , astronomy , quantum mechanics
The terahertz (THz) radar has obvious advantages of high‐resolution imaging because it is relatively easy to achieve large signal bandwidth compared with the microwave band. A 0.33 THz imaging radar system was built and experiments on a precession warhead model are presented. The imaging algorithm based on precession is adopted and high‐resolution inverse synthetic aperture radar images are obtained. From these imaging results, the structures such as the cone–top and the cone–cylinder junctions, and even the subtle structures such as rivets are clearly shown. Finally, the resolutions under different conditions are analysed to verify the advantages of THz radar in high‐resolution imaging.