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Article Dans Une Revue IEEE Transactions on Antennas and Propagation Année : 2019

Accelerated computation of the Physical Optics approximation for near-field single- and double- bounces backscattering

Gildas Kubické
Philippe Pouliguen
  • Fonction : Auteur

Résumé

This paper deals with the acceleration of the Physical Optics (PO) approximation for the backscattering computation in the near and far field, for both single-(SB) and doublebounces (DB) PO contributions. It is based on physical arguments, which allow us to apply either a closed-form expression (rapid calculation) or a numerical double integration to evaluate the scattered field from sub-surfaces of a given mesh. The use of the closed-form expression is governed by two criteria, which must be extended to the bistatic case and also to the double bounce: the conventional Fraunhofer (related to the far-field zone) criterion and the chord error (related to the surface curvature) criterion. The proposed method is tested on a dihedral geometry.
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Dates et versions

hal-02167059 , version 1 (18-11-2019)

Identifiants

Citer

Christophe Bourlier, Gildas Kubické, Philippe Pouliguen. Accelerated computation of the Physical Optics approximation for near-field single- and double- bounces backscattering. IEEE Transactions on Antennas and Propagation, 2019, 67 (12), pp.7518-7527. ⟨10.1109/TAP.2019.2930105⟩. ⟨hal-02167059⟩
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