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reflections and boundary waves
discrete vs continuous modes
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Acoust amplitude angle approximation arrivals assume attenuation average axis becomes bottom boundary calculated channel comparison consider constant continuous correlation corresponding curves deep defined density dependence depth direction discrete discussed distance effect energy equation example experimental experiments expressed field filter fluctuations frequency function given gives harmonic homogeneous horizontal incident increases infinite integral irregular layer limit m/sec matched mean measured medium method modes noise normal observed obtained ocean particular phase plane position practice pressure problem propagation properties radiation range reflection relative rough scattered shown in Fig shows signal similar simple solid solution sound sound velocity source and receiver space spectrum stratified studies surface tends theoretical theory tion total reflection transmission values wave waveguide wavelength York