Detection of Under Marine Currents by Acoustic Waves
Acoustic wave propagates properly in water, whilst most forms of electromagnetic waves, particularly in salty and dense sea water, are attenuated after a few tens or hundreds of meters so that it will be impossible to trace and detect them. This paper presents a special method for recognizing prob...
| Main Authors: | , |
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| Format: | Article |
| Language: | fas |
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Iranian Association of Naval Architecture and Marine Engineering
2015-03-01
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| Series: | نشریه مهندسی دریا |
| Subjects: | |
| Online Access: | http://marine-eng.ir/article-1-300-en.html |
| _version_ | 1818876023011278848 |
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| author | Roham Ansarimehr Hamidreza Reissosadat |
| author_facet | Roham Ansarimehr Hamidreza Reissosadat |
| author_sort | Roham Ansarimehr |
| collection | DOAJ |
| description | Acoustic wave propagates properly in water, whilst most forms of electromagnetic waves, particularly in salty and dense sea water, are attenuated after a few tens or hundreds of meters so that it will be impossible to trace and detect them. This paper presents a special method for recognizing probable underwater currents, and reconstruction of their intensities, widths, and directions by using the acoustic waves. The method relies on the differences in travel times of sound in the locations where the water density varies from one place to another. The design is based on the "rotating sound source-receiver" system. This technique is somehow similar to the customary methods of image reconstruction in diagnostic tomography. A computer program was written in Visual C in the Windows media. The efficiency and accuracy of the program was consequently evaluated by simulating an ocean tomographic region and its postulated currents. |
| first_indexed | 2024-12-19T13:35:47Z |
| format | Article |
| id | doaj.art-83377ea49c084d7aa450e78abebdcba3 |
| institution | Directory Open Access Journal |
| issn | 1735-7608 2645-8136 |
| language | fas |
| last_indexed | 2024-12-19T13:35:47Z |
| publishDate | 2015-03-01 |
| publisher | Iranian Association of Naval Architecture and Marine Engineering |
| record_format | Article |
| series | نشریه مهندسی دریا |
| spelling | doaj.art-83377ea49c084d7aa450e78abebdcba32022-12-21T20:19:12ZfasIranian Association of Naval Architecture and Marine Engineeringنشریه مهندسی دریا1735-76082645-81362015-03-011020113118Detection of Under Marine Currents by Acoustic WavesRoham Ansarimehr0Hamidreza Reissosadat1 university of isfahan Islamic Azad University of Shahreza Acoustic wave propagates properly in water, whilst most forms of electromagnetic waves, particularly in salty and dense sea water, are attenuated after a few tens or hundreds of meters so that it will be impossible to trace and detect them. This paper presents a special method for recognizing probable underwater currents, and reconstruction of their intensities, widths, and directions by using the acoustic waves. The method relies on the differences in travel times of sound in the locations where the water density varies from one place to another. The design is based on the "rotating sound source-receiver" system. This technique is somehow similar to the customary methods of image reconstruction in diagnostic tomography. A computer program was written in Visual C in the Windows media. The efficiency and accuracy of the program was consequently evaluated by simulating an ocean tomographic region and its postulated currents.http://marine-eng.ir/article-1-300-en.htmltomographyacoustic wavetravel timecurrent intensitysource-receiver |
| spellingShingle | Roham Ansarimehr Hamidreza Reissosadat Detection of Under Marine Currents by Acoustic Waves نشریه مهندسی دریا tomography acoustic wave travel time current intensity source-receiver |
| title | Detection of Under Marine Currents by Acoustic Waves |
| title_full | Detection of Under Marine Currents by Acoustic Waves |
| title_fullStr | Detection of Under Marine Currents by Acoustic Waves |
| title_full_unstemmed | Detection of Under Marine Currents by Acoustic Waves |
| title_short | Detection of Under Marine Currents by Acoustic Waves |
| title_sort | detection of under marine currents by acoustic waves |
| topic | tomography acoustic wave travel time current intensity source-receiver |
| url | http://marine-eng.ir/article-1-300-en.html |
| work_keys_str_mv | AT rohamansarimehr detectionofundermarinecurrentsbyacousticwaves AT hamidrezareissosadat detectionofundermarinecurrentsbyacousticwaves |