Sound propagation over a large wedge: A comparison between the geometrical theory of diffraction and the parabolic equation

Journal of the Acoustical Society of America

Volumn 106, Issue 1, 1999, Pages 113-119

  Robertson, J S ^a  

^a GEORGIA COLLEGE AND STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; DIFFRACTION; FREQUENCY ANALYSIS; GEOMETRY; MATHEMATICAL ANALYSIS; PRIORITY JOURNAL; SOUND;

EID: 0033000945     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.427040     Document Type: Article

References (21)

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14. J. S. Robertson, P. J. Schlatter, and W. L. Siegmann, "Sound propagation over impedance discontinuities with the parabolic approximation," J. Acoust. Soc. Am. 99, 761-767 (1996).
15. R. J. Jardine, W. L. Siegmann, and J. S. Robertson, "Alternative nonreflecting boundary conditions for PE modeling of atmospheric acoustic propagation," in Theoretical and Computational Acoustics - Volume 2, edited by D. Lee and M. H. Schultz (World Scientific, Singapore, 1994).
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18. The FORTRAN source code which implements Fresnel functions uses the definitions of S(cursive Greek chi) and C(cursive Greek chi) given here. It can be obtained via the worldwide web from http://net-lib.utk.edu/.
19. There is a minor typo in the expression given for F′ (cursive Greek chi) given in Eq. (5) of Ref. 1. It has been corrected here.
20. Such reinforcement is well known. For example, see O. L. Angevine, "The prediction of transformer noise," Sound Vib. 16-18 (October 1994).
21. D. Lee and S. T. McDaniel, "Ocean acoustic propagation by finite difference methods," Comput. Math. Appl. 14, 305-423 (1987).