Acoustical wave propagator

J. Pan; J. B. Wang

doi:10.1121/1.429577

Acoustical wave propagator

J. Pan^*, J. B. Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

In this paper, an explicit acoustical wave propagator (AWP) is introduced to described the time-domain evolution of acoustical waves. To implement its operation on an initial state of wave motion, the acoustical wave propagator is approximated as a Chebyshev polynomial expansion, which converges to machine accuracy. The spatial gradient in each polynomial term is evaluated by a Fourier transformation scheme. Analysis and numerical examples demonstrated that this Chebyshev-Fourier scheme is highly accurate and computational effective in predicting time-domain acoustical wave propagation and scattering. (C) 2000 Acoustical Society of America.

Original language	English
Pages (from-to)	481-487
Number of pages	7
Journal	Journal of the Acoustical Society of America
Volume	108
Issue number	2
DOIs	https://doi.org/10.1121/1.429577
Publication status	Published - 2000
Externally published	Yes

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10.1121/1.429577

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title = "Acoustical wave propagator",

abstract = "In this paper, an explicit acoustical wave propagator (AWP) is introduced to described the time-domain evolution of acoustical waves. To implement its operation on an initial state of wave motion, the acoustical wave propagator is approximated as a Chebyshev polynomial expansion, which converges to machine accuracy. The spatial gradient in each polynomial term is evaluated by a Fourier transformation scheme. Analysis and numerical examples demonstrated that this Chebyshev-Fourier scheme is highly accurate and computational effective in predicting time-domain acoustical wave propagation and scattering. (C) 2000 Acoustical Society of America.",

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AB - In this paper, an explicit acoustical wave propagator (AWP) is introduced to described the time-domain evolution of acoustical waves. To implement its operation on an initial state of wave motion, the acoustical wave propagator is approximated as a Chebyshev polynomial expansion, which converges to machine accuracy. The spatial gradient in each polynomial term is evaluated by a Fourier transformation scheme. Analysis and numerical examples demonstrated that this Chebyshev-Fourier scheme is highly accurate and computational effective in predicting time-domain acoustical wave propagation and scattering. (C) 2000 Acoustical Society of America.

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Acoustical wave propagator

Abstract

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