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Algorithms for Wavefront Reconstruction

Abstract : Knowing the solution to Helmholtz equation in a narrow band, with a width of order wave length around a scatterer, we investigate the possibility to construct the wave fronts predicted by the asymptotic methods Geometrical Optics (GO) and Geometrical Theory of Diffraction (GTD). More specifically we show how to build a polynomial approximation of the asymptotic solution on a circle around the scatterer and hence, in a second step, be able to propagate this solution by wavefront construction methods or standard ray-tracing.
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https://hal.inria.fr/inria-00070319
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Submitted on : Friday, May 19, 2006 - 8:03:33 PM
Last modification on : Thursday, February 3, 2022 - 11:18:46 AM
Long-term archiving on: : Sunday, April 4, 2010 - 8:56:01 PM

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  • HAL Id : inria-00070319, version 1

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Stefan Hagdahl. Algorithms for Wavefront Reconstruction. [Research Report] RR-5696, INRIA. 2005, pp.28. ⟨inria-00070319⟩

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