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Journal Articles IEEE Geoscience and Remote Sensing Letters Year : 2013

Full polarimetric bistatic radar imaging experiments on sets of dielectric cylinders above a conductive circular plate

Abstract

This paper presents fully polarimetric bistatic radar scattering measurements on groups of dielectric vertical and/or tilted square cross-sectional cylinders above a conductive circular plate in the frequency range of 6-18 GHz. The experiments have been conducted in the BABI facility at the French Aerospace Lab (ONERA). The imaging experiments consider an azimuthal bistatic radar configuration with a single incident direction and many scattering directions, in the way that the receiver positions synthesize a 1-D circular aperture in a horizontal plane around the focal point of the anechoic chamber. The bistatic scattering by the different sets of cylinders is also achieved through numerical simulations by using a volume-electric-field-integral-equation model employing a method of moments. First, theoretical and experimental bistatic radar-cross-section values are confronted. The comparisons show a good agreement for all polarization cases ($vv$ , $hv$, $vh$, and $hh$). Then, a near-field reconstruction algorithm has been extended from a monostatic to our bistatic radar configuration in order to generate the reflectivity maps by focusing both theoretical and experimental scattered fields. The comparisons of the 2-D bistatic synthetic aperture radar images show that the two prediction techniques are accurate.
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Dates and versions

hal-00843316 , version 1 (11-07-2013)

Identifiers

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Sami Bellez, Hélène Roussel, Cyril Dahon, Juan Carlos Castelli, Anil Cheraly. Full polarimetric bistatic radar imaging experiments on sets of dielectric cylinders above a conductive circular plate. IEEE Geoscience and Remote Sensing Letters, 2013, 51 (7), pp.4164 - 4176. ⟨10.1109/TGRS.2012.2227264⟩. ⟨hal-00843316⟩
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