High-Directional Sound Propagation Over the Earth’s Surface; Archives of Acoustics; Vol. 45, iss. 4
| Parent link: | Archives of Acoustics Vol. 45, iss. 4.— 2020.— [P. 747–752] |
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| Autor corporatiu: | |
| Altres autors: | , , , , |
| Sumari: | 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. |
| Idioma: | anglès |
| Publicat: |
2020
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| Matèries: | |
| Accés en línia: | http://dx.doi.org/10.24425/aoa.2020.135280 |
| Format: | xMaterials Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663737 |
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| 200 | 1 | |a High-Directional Sound Propagation Over the Earth’s Surface |f D. S. Rakov, A. S. Rakov, Yu. A. Chursin [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 24 tit.] | ||
| 330 | |a 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. | ||
| 461 | |t Archives of Acoustics | ||
| 463 | |t Vol. 45, iss. 4 |v [P. 747–752] |d 2020 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a parametric loudspeaker | |
| 610 | 1 | |a ultrasound | |
| 610 | 1 | |a primary frequency | |
| 610 | 1 | |a differential frequency | |
| 610 | 1 | |a radiation pattern | |
| 610 | 1 | |a outdoor propagation of sound | |
| 610 | 1 | |a sound attenuation | |
| 610 | 1 | |a громкоговорители | |
| 610 | 1 | |a шумоподавление | |
| 610 | 1 | |a звук | |
| 701 | 1 | |a Rakov |b D. S. |c radiophysicist |c Head of the Department of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences |f 1983- |g Denis Sergeevich |3 (RuTPU)RU\TPU\pers\43179 | |
| 701 | 1 | |a Rakov |b A. S. |g Aleksandr Sergeevich | |
| 701 | 1 | |a Chursin |b Yu. A. |c specialist in the field of physical installations |c Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences |f 1984- |g Yuri Alexandrovich |3 (RuTPU)RU\TPU\pers\31384 | |
| 701 | 1 | |a Pavlichev |b V. V. |g Vsevolod Viktorovich | |
| 701 | 1 | |a Igumnov |b A. O. |c specialist in the field of informatics and computer technology |c Laboratory assistant of Tomsk Polytechnic University |f 1988- |g Artem Olegovich |3 (RuTPU)RU\TPU\pers\46782 | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа информационных технологий и робототехники |b Научно-исследовательская лаборатория телекоммуникаций, приборостроения и морской геологии |3 (RuTPU)RU\TPU\col\25239 |
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