Influence of the direction of sound propagation along vertical atmospheric paths on the acoustic signal characteristics

Yu. B. Burkatovskaya; V. V. Belov; N. P. Krasnenko; L. G. Shamanaeva

doi:10.1117/12.2503900

13 December 2018 Influence of the direction of sound propagation along vertical atmospheric paths on the acoustic signal characteristics

Yu. B. Burkatovskaya, V. V. Belov, N. P. Krasnenko, L. G. Shamanaeva

Author Affiliations +

Proceedings Volume 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 108333X (2018) https://doi.org/10.1117/12.2503900
Event: XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2018, Tomsk, Russian Federation

Abstract

The influence of the direction of sound propagation along vertical atmospheric paths on the characteristics of received acoustic signal is discussed. The process of propagation of monochromatic acoustic radiation from the source to the receiver was simulated by the Monte Carlo method taking into account acoustic radiation absorption, excess turbulent attenuation, and refraction for different models of the atmosphere depending on the sound frequency and propagation path length. Calculations were performed for radiation frequency changing in the range 1000-4000 Hz. Here we present results of statistical simulations for a frequency of 2000 Hz. The data of statistical simulations demonstrated that practically in all cases, the intensity of radiation propagating upward exceeded the intensity of radiation propagating downward. For the intensity of single scattering, the difference was in the range 5-35 %, and for multiple scattering, it changed in the range 5-100 %. The results obtained are in good agreement with the data of a tethered balloon experiment.

Citation Download Citation

Yu. B. Burkatovskaya, V. V. Belov, N. P. Krasnenko, and L. G. Shamanaeva "Influence of the direction of sound propagation along vertical atmospheric paths on the acoustic signal characteristics", Proc. SPIE 10833, 24th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 108333X (13 December 2018); https://doi.org/10.1117/12.2503900

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