High-Directional Sound Propagation Over the Earth’s Surface

• Autorzy: Rakov Denis S. , Rakov Aleksandr S. , Chursin Yury A. , Pavlichev Vsevolod V. , Igumnov Artyom O.

Identyfikatory

DOI

10.24425/aoa.2020.135280

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

parametric loudspeaker; ultrasound; primary frequency; difference frequency; radiation pattern; outdoor propagation of sound; sound attenuation

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2020
• Tom: Vol. 45, No. 4
• Strony: 747--752
• Opis fizyczny: Bibliogr. 24 poz., rys., wykr.

Twórcy

autor

Rakov Denis S.

• Institute of Monitoring of Climatic and Ecological Systems SB RAS, Tomsk, Russia
• Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia

autor

Rakov Aleksandr S.

• Institute of Monitoring of Climatic and Ecological Systems SB RAS, Tomsk, Russia
• Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia

autor

Chursin Yury A.

• National Research Tomsk Polytechnic University, Tomsk, Russia

autor

Pavlichev Vsevolod V.

• National Research Tomsk Polytechnic University, Tomsk, Russia

autor

Igumnov Artyom O.

• National Research Tomsk Polytechnic University, Tomsk, Russia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).