High-Directional Sound Propagation Over the Earth’s Surface

The article discusses the issues of accounting the direction pattern of parametric antenna array the propagation of sound over the Earth’s surface. As a radiator, a parametric antenna array is used. A description is given of measuring equipment and experimental research methods. The Delaney-Bezley m...

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Published in:Archives of acoustics 2020-01, Vol.45 (4), p.747
Main Authors: Rakov, Denis S, Rakov, Aleksandr S, Chursin, Yury A, Pavlichev, Vsevolod V, Igumnov, Artyom O
Format: Article
Language:English
Subjects:
Acoustic propagation
Acoustics
Antenna arrays
Antennas
Archives & records
Earth surface
Frequencies
Propagation
Radiation
Radiators
Receivers & amplifiers
Research methodology
Sound pressure
Sound propagation
Sound waves
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container_title Archives of acoustics
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creator Rakov, Denis S
Rakov, Aleksandr S
Chursin, Yury A
Pavlichev, Vsevolod V
Igumnov, Artyom O
description The article discusses the issues of accounting the direction pattern of parametric antenna array the propagation of sound over the Earth’s surface. As a radiator, a parametric antenna array is used. A description is given of measuring equipment and experimental research methods. The Delaney-Bezley model was used as a model of the Earth’s surface impedance. The research results showed the importance of accounting the direction pattern of parametric antenna array in predicting the sound pressure level of a propagating acoustic signal over the Earth’s surface. On the example of a difference signal with a frequency of 2 kHz, the calculation of the sound pressure level on a 100-meter path with the influence of the Earth’s surface is shown. The results obtained showed a good agreement between the theoretical calculation and experimental data.
doi_str_mv 10.24425/aoa.2020.135280
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subjects Acoustic propagation
Acoustics
Antenna arrays
Antennas
Archives & records
Earth surface
Frequencies
Propagation
Radiation
Radiators
Receivers & amplifiers
Research methodology
Sound pressure
Sound propagation
Sound waves
title High-Directional Sound Propagation Over the Earth’s Surface
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