NDLI: Simulation of broadband sound propagation in shallow water environments

Content Provider	IEEE Xplore Digital Library
Author	Li Li Hai-gang Zhang Sheng-chun Piao Yun-he Li Ya-xiao Mo
Copyright Year	2012
Description	Author affiliation: Unit 92337 of People's Liberation Army, Dalian 116000, China (Yun-he Li) \|\| Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, 150001, China (Li Li; Hai-gang Zhang; Sheng-chun Piao; Ya-xiao Mo)
Abstract	In this paper, broadband sound propagation in shallow water environments is studied. Fourier synthesis method of frequency-domain solutions is selected to do the simulation of time-series. The frequency-domain calculations in Pekeris waveguide are carried out by normal mode model KRAKEN. To improve the computational efficiency, parallel computing of KRAKEN is implemented based on MPI (Message Passing Interface) environment. And the Fast Fourier Transform (FFT) part of Fourier synthesis is performed using CUDA (Compute Unified Device Architecture). Evaluation shows that parallel programming of Fourier synthesis saves run-time effectively. Then, a more realistic shallow water environment involving elastic bottom is taken into consideration. Simulations present that the propagation of a broadband pulse in shallow water environments is strongly affected by the elastic parameters of the ocean bottom. The modal arrival structures are analyzed for all cases. And the dispersion characteristics are exhibited by simulation results.
Starting Page	171
Ending Page	174
File Size	767046
Page Count	4
File Format	PDF
ISBN	9781467348140
DOI	10.1109/SPAWDA.2012.6464063
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-11-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Parallel programming Computational modeling Oceans Graphics processing units Broadband modeling Broadband communication Mathematical model Frequency domain analysis Seismic wave propagation Fourier synthesis
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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