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Far-Field Radar Cross-Section Determination From Near-Field 3-D Synthetic Aperture Imaging With Arbitrary Antenna Scanning Surfaces

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posted on 04.04.2022, 07:01 by Takuma WatanabeTakuma Watanabe, Hiroyoshi Yamada
This article has been accepted for publication in IEEE Transactions on Antennas and Propagation.

Citation information:
T. Watanabe and H. Yamada, “Far-Field Radar Cross-Section Determination From Near-Field 3-D Synthetic Aperture Imaging With Arbitrary Antenna-Scanning Surfaces,” IEEE Transactions on Antennas and Propagation, doi: 10.1109/TAP.2022.3161491.

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In this study, we propose a generalized algorithm for far-field radar cross-section determination by using 3-D synthetic aperture imaging with arbitrary antenna-scanning surfaces. This method belongs to a class of techniques called image-based near-field-to-far-field transformation. The previous image-based approaches have been formulated based on a specific antenna-scanning trajectory or surface, such as a line, plane, circle, cylinder, and sphere; majority of these approaches consider 2-D radar images to determine the azimuth radar cross-section. We generalize the conventional image-based technique to accommodate an arbitrary antenna-scanning surface and consider a 3-D radar image for radar cross-section prediction in both the azimuth and zenith directions. We validate the proposed algorithm by performing numerical simulations and anechoic chamber measurements.

History

Email Address of Submitting Author

takuma.watanabe.jp@ieee.org

ORCID of Submitting Author

0000-0001-6133-8513

Submitting Author's Institution

Fujitsu System Integration Laboratories Ltd.

Submitting Author's Country

Japan