Specific features of the space-time structure of acoustic signals in multimode waveguides |
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| Authors: | E. L. Borodina Yu. V. Petukhov |
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| Affiliation: | (1) Institute of Applied Physics, Russian Academy of Sciences, ul. Ul’yanova 46, Nizhni Novgorod, 603600, Russia |
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| Abstract: | The effect of the diffraction focusing of an acoustic field on the space-time intensity distribution of narrow-band pulsed signals in multimode oceanic waveguides is analytically and numerically studied. The laws governing this effect and its specific features are illustrated by the results of calculations based on the standard ray approximation and the mode theory for the acoustic field in an isovelocity waveguide. |
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