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Far-Field Radar Cross-Section Determination From Near-Field 3-D Synthetic Aperture Imaging With Arbitrary Antenna Scanning Surfaces
  • Takuma Watanabe ,
  • Hiroyoshi Yamada
Takuma Watanabe
Fujitsu System Integration Laboratories Ltd., Fujitsu System Integration Laboratories Ltd., Fujitsu Limited

Corresponding Author:[email protected]

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Hiroyoshi Yamada
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Abstract

In this study, we propose a generalized algorithm for far-field radar cross-section determination from 3-D synthetic aperture imaging with arbitrary antenna scanning surfaces. This method belongs to the class of techniques called image-based near-field to far-field transformation. The previous image-based approaches were formulated based on a specific antenna scanning surface or trajectory such as a line, a plane, a circle, a cylinder, and a sphere--and the majority of them considered 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 demonstrate the proposed algorithm via numerical simulations and anechoic chamber measurements.
Jul 2022Published in IEEE Transactions on Antennas and Propagation volume 70 issue 7 on pages 5831-5840. 10.1109/TAP.2022.3161491