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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DissertationDOI
Acoustic source localization at low frequencies using microphone arrays
TL;DR: In this paper, two approaches are presented to overcome the limitations of the beamforming method for low frequency sound source localization, which are based on numerically computed transfer functions (NCTFs) and finite element method (FEM).
Journal ArticleDOI
Regularization method for the application of K-space data extrapolation to near-field acoustical holography
TL;DR: In this paper, a regularization method for applying the K-space data extrapolation method to near-field acoustical holography (NAH) is proposed to reduce the influence of the finiteness of measurement aperture.
Journal ArticleDOI
Spatial resolution limits for the localization of noise sources using direct sound mapping
TL;DR: In this article, the limits of the direct representation of sound pressure, particle velocity and sound intensity were derived by exploring the relationship between spatial resolution, noise level and geometry, and the proposed expressions were validated via simulations and experiments.
Journal ArticleDOI
Adaptive wave field synthesis for broadband active sound field reproduction: signal processing.
TL;DR: Signal processing for independent radiation mode control of AWFS on the basis of plant decoupling and a classical adaptive algorithm is modified for AWFS: filtered-reference least-mean-square.
Proceedings ArticleDOI
Global and Local Mode-domain Adaptive Algorithms for Spatial Active Noise Control Using Higher-order Sources
TL;DR: Two types of adaptive algorithm for spatial ANC using HOSs are proposed, which provide a trade-off between efficiency and error robustness against loudspeaker placements and show the efficacy of the proposed algorithms compared with the conventional multipoint adaptive spatial ANC algorithm.
Related Papers (5)
A highly scalable spherical microphone array based on an orthonormal decomposition of the soundfield
Jens Meyer,Gary W. Elko +1 more