Indoor range for spatially resolved radar signature acquisition of targets

Uwe Aulenbacher; Marc-Andre John; Christian Inaebnit

doi:10.1117/12.718349

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7 May 2007 Indoor range for spatially resolved radar signature acquisition of targets

Uwe Aulenbacher, Marc-Andre John, Christian Inaebnit

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Proceedings Volume 6568, Algorithms for Synthetic Aperture Radar Imagery XIV; 65680F (2007) https://doi.org/10.1117/12.718349
Event: Defense and Security Symposium, 2007, Orlando, Florida, United States

Abstract

In conjunction with measures for target detection and classification as well as for the corresponding counteractive measures spatially resolved radar signatures are of high importance. To allow the implementation of different techniques for radar backscattering characterization an indoor measurement range was realized. It uses a hall of size 35 x 20 x 8 m³ which is equipped with a 7-m-diameter target turntable with 70-tons capacity. A crane allows the antennas to be moved along horizontal paths with very high accuracy (0.1mm). In this range different measurement systems, related to different methods for target characterization were realized. This contribution reviews the most important features of the employed concepts and provides a critical comparison as well as a discussion about the limitations of these approaches. All concepts aim for a decomposition of the radar backscattering into contributions assigned to substructures being considerably smaller than the overall size of the target. For microwave frequencies (e. g. X-band) a 3-D-ISAR approach provides resolution cells with linear dimensions of about 1-2 wavelengths and a corresponding deterministic target model. For the millimeter-wave regime (W-band) an alternative approach based on directive antennas and time-gating was implemented and provides the parameters of a spatially resolved stochastic target model.

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Uwe Aulenbacher, Marc-Andre John, and Christian Inaebnit "Indoor range for spatially resolved radar signature acquisition of targets", Proc. SPIE 6568, Algorithms for Synthetic Aperture Radar Imagery XIV, 65680F (7 May 2007); https://doi.org/10.1117/12.718349

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