DocumentCode
3157582
Title
High frequency quasi-normal waves for nonstationary near-surface waveguide
Author
Aref, A.V.
Author_Institution
Dept. Math. Phys., St. Petersburg Univ., Russia
fYear
2002
fDate
2002
Firstpage
36
Lastpage
42
Abstract
The propagation of nonharmonic acoustic waves in an ocean refractive waveguide with slowly varying properties in horizontal directions and time is discussed. The waveguide is modulated as a water layer with plane boundaries. The wavelength is assumed to be small in comparison with the width of the layer. A set of asymptotic solutions of the wave equation called as quasi-normal waves and nonstationary eikonal equation are constructed.
Keywords
acoustic waveguides; oceanography; underwater acoustic propagation; waveguide theory; anharmonic acoustic waves; asymptotic solutions; high frequency quasi-normal waves; nonstationary eikonal equation; nonstationary near-surface waveguide; ocean refractive waveguide; propagation; slowly varying properties; water layer; wave equation; wavelength; Acoustic diffraction; Acoustic propagation; Acoustic refraction; Acoustic waveguides; Acoustic waves; Frequency; Laplace equations; Oceans; Partial differential equations; Planar waveguides;
fLanguage
English
Publisher
ieee
Conference_Titel
Day on Diffraction, 2002. Proceedings. International Seminar
Print_ISBN
5-7997-0469-X
Type
conf
DOI
10.1109/DD.2002.1177890
Filename
1177890
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