Ocean Acoustics: Theory and Experiment in Underwater Sound |
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23 pages matching group velocity in this book
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reflections and boundary waves | 23 |
discrete vs continuous modes | 33 |
Propagation of pulses in dispersive media | 40 |
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acoustic field acoustical pressure amplitude approximation assume attenuation axis bottom boundary c₁ c₂ calculated caustic Chap characteristic equation constant correlation function corresponding cross correlation curves density depth discrete discrete spectrum dynes/cm² effect eigenvalues energy experimental experiments filter frequency gives group velocity h₁ half-space harmonic homogeneous horizontal hydrophone infinite inhomogeneities integral interface irregular layer m/sec matched mean-square measured medium noise number of modes obtained p₁ Pekeris perfect waveguide phase velocity plane plane-wave problem propagation pulse range ray optics ray theory reflection coefficient scattered radiation sediment shallow-water shown in Fig signal sin² Skudrzyk SOFAR channel solid solution sound field sound velocity source and receiver spectrum stratified tends to zero theoretical tion Tolstoy total reflection transmission turning point underwater acoustics values wave number waveguide wavelength Yimh Ym²