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Role of the Speed of Sound’s Dispersion in Improving the Efficiency of a Parametric Antenna in a Shallow Waveguide

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The possibility is considered of increasing the efficiency of a parametric antenna when exciting acoustic modes in a shallow marine waveguide. It is shown that the complete compression of acoustic signals propagating in the shelf sea can be achieved with a corresponding increase in their intensity if a special mode of frequency modulation is selected. Results are presented from an experimental study of this effect in the propagation of a broadband acoustic signal of a parametric antenna in the shelf sea.

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Funding

This work was supported by the Russian Foundation for Basic Research, project nos. 17-02-00434 and 20-02-00676.

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Correspondence to I. B. Esipov.

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Translated by I. Obrezanova

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Esipov, I.B., Popov, O.E. Role of the Speed of Sound’s Dispersion in Improving the Efficiency of a Parametric Antenna in a Shallow Waveguide. Bull. Russ. Acad. Sci. Phys. 84, 638–643 (2020). https://doi.org/10.3103/S106287382006009X

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  • DOI: https://doi.org/10.3103/S106287382006009X

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