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A new approach for fast security scanning with millimetre-waves: SARGATE

: Lang, S.A.; Hägelen, M.; Ender, J.; Hantscher, S.; Essen, H.


Wikner, D.A.; Luukanen, A.R. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Passive Millimeter-Wave Imaging Technology XIV : 28 April 2011, Orlando, Florida, United States
Bellingham, Wash.: SPIE, 2011 (Proceedings of SPIE 8022)
ISBN: 978-0-8194-8596-0
Paper 802208
Conference "Passive Millimeter-Wave Imaging Technology" <14, 2011, Orlando/Fla.>
Fraunhofer FHR ()

Measuring many people within a short time is still a great challenge to scanners in security related areas, e.g. airports or stations. A new approach for fast and high resolution scanning is presented, based on the so called "circular synthetic aperture radar" (CSAR), applied to a walkway. Due to the circular movement, each of the receiving antennas creates a circular synthetic aperture itself. By reconstructing the complex valued SAR-images for each receiver channel, the ability to perform interferometric SAR-Analysis of a tested person is given. The screened persons do not have to stand still, thus, a measurement in a passenger flow is possible.