High-Directional Sound Propagation Over the Earth’s Surface
| Parent link: | Archives of Acoustics Vol. 45, iss. 4.— 2020.— [P. 747–752] |
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| Coauteur: | |
| Andere auteurs: | , , , , |
| Samenvatting: | Title screen 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. |
| Gepubliceerd in: |
2020
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| Onderwerpen: | |
| Online toegang: | http://dx.doi.org/10.24425/aoa.2020.135280 |
| Formaat: | Elektronisch Hoofdstuk |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663737 |