Terahertz Imaging Using a Bistatic Fast Factorized Backprojection Algorithm

Conference: EUSAR 2012 - 9th European Conference on Synthetic Aperture Radar
04/23/2012 - 04/26/2012 at Nuremberg, Germany

Proceedings: EUSAR 2012

Pages: 4Language: englishTyp: PDF

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Moll, Jochen; Schöps, Philipp; Krozer, Viktor (Goethe University Frankfurt am Main, Department of Physics, Terahertz Photonics Group, Max-von-Laue-Straße 1, 60438 Frankfurt am Main, Germany)
Keil, Andreas; Loeffler, Torsten (SynView GmbH, Bad Homburg, Germany)
de Maagt, Peter (ESA/ESTEC 2200 AG Noordwijk, Netherlands)

This paper presents a time-domain approach for synthetic image reconstruction applications called bistatic fast factorized backprojection. The idea of the algorithm is to recursively factorize both, the aperture positions and the target area. For veri??cation purposes, the formalism is applied to experimental measurements from a terahertz scanner that operates in a frequencymodulated continuous wave (FMCW) mode in a frequency range between 234 and 306 GHz. Parameter studies are presented for different factorization con??gurations.