Fast two‐dimensional THz imaging using rail‐based synthetic aperture radar (SAR) processing
Syed An Nazmus Saqueb, Niru K. Nahar, Kubilay Sertel
Abstract
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.
Topics & Concepts
Synthetic aperture radarTerahertz radiationRadar imagingAzimuthInverse synthetic aperture radarRadarSide looking airborne radarOpticsComputer scienceReflection (computer programming)Remote sensingContinuous-wave radarGeologyPhysicsTelecommunicationsProgramming languageTerahertz technology and applicationsSuperconducting and THz Device TechnologyAcoustic Wave Resonator Technologies