Open AccessBook
Fourier Acoustics: Sound Radiation and Nearfield Acoustical Holography
Earl G. Williams,J. Adin Mann +1 more
TLDR
The Inverse Problem: Cylindrical NAH. as discussed by the authors The Inverse problem: Planar NAH and the Inverse NP-hardness of planar plane waves.Abstract:
Preface. Fourier Transforms & Special Functions. Plane Waves. The Inverse Problem: Planar NAH. Cylindrical Waves. The Inverse Problem: Cylindrical NAH. Spherical Waves. Spherical NAH. Green Functions & the Helmholtz Integral. Index.read more
Citations
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Journal ArticleDOI
Nonlinear approach to approximate acoustic boundary admittance in cavities
TL;DR: In this article, an algorithm is derived to solve a problem of inverse acoustics, i.e., the damped acoustic boundary value problem, in order to approximate the boundary admittance of interior domains.
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Sound field separation for planar sources facing a parallel reflector
TL;DR: In this paper, a Fourier-based technique was proposed to process near-field microphone array measurements that are performed on a single plane between the vibrating plate and the reflector.
Journal ArticleDOI
Hemispherical double-layer time reversal imaging in reverberant and noisy environments at audible frequencies.
TL;DR: Results demonstrate the ability of the proposed method to back-propagate acoustic waves radiated from non-stationary sources in the volume delimited by the measurement array with a high precision both in time and space domains.
Journal ArticleDOI
Numerical simulation of acoustic holography with propagator adaptation. Application to a 3D disc
Vincent Martin,Vincent Martin,Thibault Le Bourdon,Thibault Le Bourdon,Alexander Mattioli Pasqual,Alexander Mattioli Pasqual +5 more
TL;DR: In this article, a geometrical interpretation of the acoustic holography in the objective space (here the radiated pressure space equipped with the L 2 -norm) and on a genetic algorithm is used to identify the vibration velocity of an extended vibrating body.
Journal ArticleDOI
Intensity Based Spatial Soundfield Reproduction Using an Irregular Loudspeaker Array
TL;DR: An intensity matching technique to optimally reproduce sound intensity over a continuous spatial region using an irregular loudspeaker array is presented and it is shown that the intensity matching method has better overall performance with two different irregular loudspeakers layouts through simulations.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more