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Journal Articles Acoustical Physics / Akusticheskii zhurnal Year : 2013

Obstacles in acoustic waveguides becoming "invisible" at given frequencies

Abstract

We prove the existence of gently sloping perturbations of walls of an acoustic two-dimensional waveguide, for which several waves at given frequencies pass by the created obstacle without any distortion or with only a phase shift.
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Dates and versions

hal-00937689 , version 1 (28-01-2014)

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Anne-Sophie Bonnet-Ben Dhia, Sergei Nazarov. Obstacles in acoustic waveguides becoming "invisible" at given frequencies. Acoustical Physics / Akusticheskii zhurnal, 2013, 59(6), pp.633--639. ⟨10.1134/S1063771013050047⟩. ⟨hal-00937689⟩
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