PO/MEC-BASED SCATTERING MODEL FOR COMPLEX OBJECTS ON A SEA SURFACE | Zendy

Alexandre Baussard | Zendy; Majid Rochdi | Zendy; Ali Khenchaf | Zendy

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PO/MEC-BASED SCATTERING MODEL FOR COMPLEX OBJECTS ON A SEA SURFACE

Author(s) -

Alexandre Baussard,

Majid Rochdi,

Ali Khenchaf

Publication year - 2011

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier10083005

Subject(s) - synthetic aperture radar , computation , bistatic radar , surface (topology) , scattering , radar cross section , physical optics , computer science , radar , scaling , algorithm , radar imaging , optics , computer vision , physics , geometry , mathematics , telecommunications

WOSInternational audienceIn this contribution a model based on asymptotic methods is proposed to compute the scattered field from complex objects on a sea surface. The scattering model combines the geometrical optics, the physical optics and the method of equivalent currents. It includes the shadowing effects and multiple-bounce up to order 3. This model is used, in the following, for Radar Cross Section (RCS) estimation and to generate Synthetic Aperture Radar (SAR) raw data for imaging applications. The theoretical aspects are reviewed in this paper and the proposed model is detailed. Numerical results are provided to validate the approach through the computation of RCS for canonical objects and complex scenes. Both the bistatic and the monostatic configurations are studied in this work. Finally some first results dealing with SAR imaging of objects on a sea surface are provided. These images are constructed from the simulated raw data thanks to a chirp scaling-based algorithm

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