High-Directional Sound Propagation Over the Earth’s Surface

High-Directional Sound Propagation Over the Earth’s Surface

Bibliographic Details
Parent link:Archives of Acoustics
Vol. 45, iss. 4.— 2020.— [P. 747–752]
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Научно-исследовательская лаборатория телекоммуникаций, приборостроения и морской геологии
Other Authors: Rakov D. S. Denis Sergeevich, Rakov A. S. Aleksandr Sergeevich, Chursin Yu. A. Yuri Alexandrovich, Pavlichev V. V. Vsevolod Viktorovich, Igumnov A. O. Artem Olegovich
Summary: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.
Language:English
Published: 2020
Subjects:
электронный ресурс
труды учёных ТПУ
parametric loudspeaker
ultrasound
primary frequency
differential frequency
radiation pattern
outdoor propagation of sound
sound attenuation
громкоговорители
шумоподавление
звук
Online Access:http://dx.doi.org/10.24425/aoa.2020.135280
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663737

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