A System for THz Imaging of Low-Contrast Targets Using the Born Approximation
Artikel i vetenskaplig tidskrift, 2012

A THz imaging system, operating at 346 GHz and tailored for implementation of an imaging algorithm based on the Born approximation, is presented. The imaging algorithm provides focusing by compensating for the antenna footprint. This allows for using a more simple antenna system without optical focusing. Several aspects of implementing an imaging algorithm based on the Born approximation in THz imaging are discussed and key system properties are highlighted. The performance of the imaging algorithm is verified by imaging two simple dielectric targets. The results indicate that this approach provides a qualitative indication of the distribution of contrast in the samples complex permittivity and is a potential complement to existing imaging techniques.

sub-millimeter

terahertz (THz)

imaging

Born approximation

Författare

Robin Dahlbäck

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Tonny Rubaek

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Mikael Persson

Chalmers, Signaler och system, Signalbehandling och medicinsk teknik, Biomedicinsk elektromagnetik

Jan Stake

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

IEEE Transactions on Terahertz Science and Technology

2156-342X (ISSN)

Vol. 2 3 361-370 6177710

Styrkeområden

Informations- och kommunikationsteknik

Livsvetenskaper och teknik

Infrastruktur

Nanotekniklaboratoriet

Ämneskategorier

Signalbehandling

Datorseende och robotik (autonoma system)

Annan industriell bioteknik

Annan elektroteknik och elektronik

DOI

10.1109/TTHZ.2012.2189900

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Skapat

2017-10-07