Open AccessFast two‐dimensional THz imaging using rail‐based synthetic aperture radar (SAR) processing
Author(s) -
Saqueb S.,
Nahar N.K.,
Sertel K.
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2020.0847
Subject(s) - synthetic aperture radar , terahertz radiation , radar imaging , azimuth , inverse synthetic aperture radar , radar , side looking airborne radar , optics , computer science , reflection (computer programming) , remote sensing , continuous wave radar , geology , physics , telecommunications , programming language
The authors present a terahertz‐band imaging system using rail‐based synthetic aperture radar sensing and processing. In the proposed setup, the object is inclined with respect to the transmitter and is scanned in azimuth using a motorised linear stage. The single‐transceiver system is based on one‐port full‐duplex frequency extender module coupled with a vector network analyser. Processing the reflection data recorded in the frequency domain, it is possible to reconstruct high‐resolution two‐dimensional images of objects and voids concealed behind material layers in the 220–355 and 500–750 GHz bands with sub‐millimetre resolution.