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Volume 10, Issue 20 (3-2015)                   Marine Engineering 2015, 10(20): 113-118 | Back to browse issues page

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Ansarimehr R, Reissosadat H. Detection of Under Marine Currents by Acoustic Waves. Marine Engineering 2015; 10 (20) :113-118
URL: http://marine-eng.ir/article-1-300-en.html
Detection of Under Marine Currents by Acoustic Waves
Roham Ansarimehr *1 , Hamidreza Reissosadat2
1- university of isfahan
2- Islamic Azad University of Shahreza
Abstract:   (7234 Views)
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.
Keywords: tomography, acoustic wave, travel time, current intensity, source-receiver
Full-Text [PDF 480 kb]   (4816 Downloads)    
Type of Study: Research Paper | Subject: Marine Structures and near shore
Received: 2014/03/8 | Accepted: 2014/08/4
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International Journal of Maritime Technology is licensed under a

Creative Commons Attribution-NonCommercial 4.0 International License.