Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation
The directivity of an underwater sound source should be measured in an acoustically open field such as a calm sea or lake, or an anechoic water tank facility. However, technical difficulties arise when practically implementing this in open fields. Signal processing-based techniques such as a sound i...
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| Format: | Article |
| Language: | English |
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The Korean Society of Ocean Engineers
2019-10-01
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| Series: | 한국해양공학회지 |
| Subjects: | |
| Online Access: | http://joet.org/upload/pdf/joet-33-5-421.pdf |
| _version_ | 1818259027509903360 |
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| author | Kookhyun Kim |
| author_facet | Kookhyun Kim |
| author_sort | Kookhyun Kim |
| collection | DOAJ |
| description | The directivity of an underwater sound source should be measured in an acoustically open field such as a calm sea or lake, or an anechoic water tank facility. However, technical difficulties arise when practically implementing this in open fields. Signal processing-based techniques such as a sound intensity method and near-field acoustic holography have been adopted to overcome the problem, but these are inefficient in terms of acquisition and maintenance costs. This study established a simple directivity estimation technique with data acquisition, filtering, and analysis tools. A numerical simulation based on an acoustic radiosity method showed that the technique is practicable for sound source directivity estimation in a diffused reverberant acoustic field like a reverberant water tank. |
| first_indexed | 2024-12-12T18:08:55Z |
| format | Article |
| id | doaj.art-c8adfe6e78cc4b87ba36afa7b67a605b |
| institution | Directory Open Access Journal |
| issn | 1225-0767 2287-6715 |
| language | English |
| last_indexed | 2024-12-12T18:08:55Z |
| publishDate | 2019-10-01 |
| publisher | The Korean Society of Ocean Engineers |
| record_format | Article |
| series | 한국해양공학회지 |
| spelling | doaj.art-c8adfe6e78cc4b87ba36afa7b67a605b2022-12-22T00:16:25ZengThe Korean Society of Ocean Engineers한국해양공학회지1225-07672287-67152019-10-0133542142610.26748/KSOE.2019.0442913Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical SimulationKookhyun KimThe directivity of an underwater sound source should be measured in an acoustically open field such as a calm sea or lake, or an anechoic water tank facility. However, technical difficulties arise when practically implementing this in open fields. Signal processing-based techniques such as a sound intensity method and near-field acoustic holography have been adopted to overcome the problem, but these are inefficient in terms of acquisition and maintenance costs. This study established a simple directivity estimation technique with data acquisition, filtering, and analysis tools. A numerical simulation based on an acoustic radiosity method showed that the technique is practicable for sound source directivity estimation in a diffused reverberant acoustic field like a reverberant water tank.http://joet.org/upload/pdf/joet-33-5-421.pdfunderwater sound sourcesound source directivitysimple estimation techniquediffused acoustic fieldreverberant tank plot |
| spellingShingle | Kookhyun Kim Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation 한국해양공학회지 underwater sound source sound source directivity simple estimation technique diffused acoustic field reverberant tank plot |
| title | Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation |
| title_full | Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation |
| title_fullStr | Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation |
| title_full_unstemmed | Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation |
| title_short | Simple Estimation of Sound Source Directivity in Diffused Acoustic Field: Numerical Simulation |
| title_sort | simple estimation of sound source directivity in diffused acoustic field numerical simulation |
| topic | underwater sound source sound source directivity simple estimation technique diffused acoustic field reverberant tank plot |
| url | http://joet.org/upload/pdf/joet-33-5-421.pdf |
| work_keys_str_mv | AT kookhyunkim simpleestimationofsoundsourcedirectivityindiffusedacousticfieldnumericalsimulation |