Underwater broadband acoustic scattering modelling based on FDTD

dc.contributor.authorJie, Shao
dc.contributor.authorWeisong, Zhao
dc.contributor.authorXiangjun, Jin
dc.contributor.authorXin, Zhang
dc.contributor.authorMalekian, Reza
dc.date.accessioned2015-08-24T13:16:38Z
dc.date.available2015-08-24T13:16:38Z
dc.date.issued2015
dc.description.abstractA modified finite-difference time-domain (FDTD) method is described in this paper. The absorption coefficient which is frequency-dependent is considered, and it is used to compute broadband acoustic scattering model of underwater complex object. The perfectly matched layer (PML) absorbing boundary condition (ABC) is applied to this work. Considering computation and accuracy comprehensively, PML boundary layer number and the attenuation coefficient is set at proper values. Computer Graphics are applied to mesh-generating of the irregular object. A pulse of LFM signal is used to simulate wide-band acoustic scattering field of a circle in 2D and a complex object in 3D. And the scattered acoustic pressure waveforms of some certain points are computed in the calculation field. Results obtained from simulation confirm the high accuracy of the proposed method.en_ZA
dc.description.librarianam2015en_ZA
dc.description.sponsorshipThis research was supported in part by the Foundation of Key Laboratory of China’s Education Ministry and A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.en_ZA
dc.description.urihttp://www.eejournal.ktu.lt/index.php/elten_ZA
dc.identifier.citationJie, S, Weisong, Z, Xiangjun, J, Xin, Z & Malekian, R 2015, 'Underwater broadband acoustic scattering modelling based on FDTD', "Elektronika ir Elektrotechnika, vol. 21, no. 2, pp. 58-64.en_ZA
dc.identifier.issn1392-1215 (print)
dc.identifier.issn2029-5731 (online)
dc.identifier.other10.5755/j01.eee.21.2.11513
dc.identifier.urihttp://hdl.handle.net/2263/49462
dc.language.isoenen_ZA
dc.publisherKaunas University of Technologyen_ZA
dc.rightsKaunas University of Technologyen_ZA
dc.subjectUnderwater acoustic scatteringen_ZA
dc.subjectAbsorption coefficienten_ZA
dc.subjectWide-band signalen_ZA
dc.subjectComplex objecten_ZA
dc.subjectFinite-difference time-domain (FDTD)en_ZA
dc.titleUnderwater broadband acoustic scattering modelling based on FDTDen_ZA
dc.typeArticleen_ZA

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