Augustin, Sven and Jung, Peter and Frohmann, Sven and Hübers, Heinz-Wilhelm (2019) Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol. IEEE Transactions on Terahertz Science and Technology, 9 (4), pp. 364-372. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TTHZ.2019.2915640 ISSN 2156-342X
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Official URL: http://dx.doi.org/10.1109/TTHZ.2019.2915640
Abstract
In this paper, results of a 0.35 THz dynamic aperture imaging approach are presented. The experiments use an optical modulation approach and a single pixel detector at a standoff imaging distance of 1 m. The optical modulation creates dynamic apertures of 5-cm diameter with 2000 individually controllable elements. An optical modulation approach is used here for the first time at a large far-field distance, for the investigation of various test targets in a field-of-view of 8 × 8 cm2. The results highlight the versatility of this modulation technique and show that this imaging paradigm is applicable even at large far-field distances. It proves the feasibility of this imaging approach for potential applications like standoff security imaging or far field THz microscopy.
Item URL in elib: | https://elib.dlr.de/127416/ | |||||||||||||||
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Document Type: | Article | |||||||||||||||
Title: | Terahertz dynamic aperture imaging at stand-off distances using a Compressed Sensing protocol | |||||||||||||||
Authors: |
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Date: | 4 July 2019 | |||||||||||||||
Journal or Publication Title: | IEEE Transactions on Terahertz Science and Technology | |||||||||||||||
Refereed publication: | Yes | |||||||||||||||
Open Access: | No | |||||||||||||||
Gold Open Access: | No | |||||||||||||||
In SCOPUS: | Yes | |||||||||||||||
In ISI Web of Science: | Yes | |||||||||||||||
Volume: | 9 | |||||||||||||||
DOI : | 10.1109/TTHZ.2019.2915640 | |||||||||||||||
Page Range: | pp. 364-372 | |||||||||||||||
Publisher: | IEEE - Institute of Electrical and Electronics Engineers | |||||||||||||||
ISSN: | 2156-342X | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | Computational imaging, inverse problems, spatial light modulators (SLMs), terahertz (THz) imaging | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
HGF - Program: | Space | |||||||||||||||
HGF - Program Themes: | Space Technology | |||||||||||||||
DLR - Research area: | Raumfahrt | |||||||||||||||
DLR - Program: | R SY - Technik für Raumfahrtsysteme | |||||||||||||||
DLR - Research theme (Project): | R - Vorhaben OptoRob, R - Vorhaben Optische Technologien und Anwendungen | |||||||||||||||
Location: | Berlin-Adlershof | |||||||||||||||
Institutes and Institutions: | Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy | |||||||||||||||
Deposited By: | Frohmann, Sven | |||||||||||||||
Deposited On: | 10 Jan 2020 08:51 | |||||||||||||||
Last Modified: | 15 Jan 2020 11:25 |
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