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- W2037124539 abstract "Wave-front modeling offers a direct method of finding pulse waveforms in both deep and shallow water. The wave-front is found by tracing rays to a fixed range and finding the ray depth as a function of starting angle. Interpolation on the wave-front provides the amplitude and arrival time at the receiver depth. Phase is determined by the ray history. The expressions for the phase and amplitude are derived directly from the wave equation using WKB approximations for solutions to the depth-separated equation. Caustics are handled by treating rays as pairs and involve Airy functions which describe the smooth transition between insonified and shadow regions. On the shadow side of a caustic the rays have complex angles and travel times. Ray-tracing for complex angles can be avoided and waveforms in the shadow can be found approximately by fitting the phase function near the caustic." @default.
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- W2037124539 date "2000-11-01" @default.
- W2037124539 modified "2023-09-24" @default.
- W2037124539 title "Wave‐front modeling" @default.
- W2037124539 doi "https://doi.org/10.1121/1.4743518" @default.
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