Tripwire detection in SAR images using a modified radon transform

peer-reviewed
Erstveröffentlichung
2020Authors
Schartel, Markus
Grathwohl, Alexander
Schmid, Christopher
Burr, Ralf
Waldschmidt, Christian
Beitrag zu einer Konferenz
Published in
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium ; 2020 (2021). - S. 746-749. - ISBN 978-1-7281-6374-1, ISBN 978-1-7281-6373-4, ISBN 978-1-7281-6375-8
Link to original publication
https://dx.doi.org/10.1109/IGARSS39084.2020.9323636Faculties
Fakultät für Ingenieurwissenschaften, Informatik und PsychologieInstitutions
Institut für MikrowellentechnikDocument version
accepted versionConference
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020-09-26 - 2020-10-02, Waikoloa, HI, USA
Abstract
Anti-personnel fragmentation mines and improvised explosive devices often use metallic wires-so-called tripwires-for the trigger mechanism. Depending on environment and vegetation, these wires are hardly visible. Therefore, an airborne synthetic aperture radar (SAR) was developed to assist the process of mine clearance. In this work, an algorithm for the detection and localization of tripwires in SAR images is proposed. A modified Radon transform is employed that relies on the SAR phase information. Instead of simply integrating absolute values over a straight line, the complex-valued data is analyzed in the frequency domain. The result in the transformed image is then given by the maximum amplitude within a given frequency range, causing tripwires to clearly separate from clutter. The functionality of this algorithm is successfully demonstrated by measurements of tripwires attached to a dummy mine in wet grass.
Subject headings
[GND]: Elektromagnetische Reflexionsmethode | Radon-Transformation | FMCW-Radar | Flugkörper | Landmine | Stolperdraht | Synthetische Apertur[LCSH]: Radon transforms | Land mines | Synthetic aperture radar
[Free subject headings]: Elektromagnetische Reflexionsmethode | Radon-Transformation | Moduliertes Dauerstrichradar | Flugkörper | Landmine | Stolperdraht | Synthetische Apertur
[DDC subject group]: DDC 620 / Engineering & allied operations
Metadata
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Please use this identifier to cite or link to this item: http://dx.doi.org/10.18725/OPARU-36788
Schartel, Markus et al. (2021): Tripwire detection in SAR images using a modified radon transform. Open Access Repositorium der Universität Ulm und Technischen Hochschule Ulm. http://dx.doi.org/10.18725/OPARU-36788
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