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タイトル: Design and implementation of a two-dimensional sound field solver based on the Digital Huygens’ Model
著者: Yiyu, Tan
Inoguchi, Yasushi
Sato, Yukinori
Otani, Makoto
Iwaya, Yukio
Tsuchiya, Takao
キーワード: Digital Huygens’ Model
Sound field analysis
FPGA
FDTD
発行日: 2014-02-19
出版者: Elsevier
誌名: Microprocessors and Microsystems
巻: 38
号: 3
開始ページ: 216
終了ページ: 225
DOI: 10.1016/j.micpro.2014.02.001
抄録: Sound field analysis is complicated and computationally intensive. In this paper, a two-dimensional sound field solver based on the Digital Huygens’ Model (DHM) is designed and implemented by a Field Programmable Gate Array (FPGA). In this sound field solver, the original DHM and its boundary condition are extended to reduce operations and hardware resource consumption. The computation is completed locally, and external memory access is avoided. In a two-dimensional space with both length and width being 1.28 m, when boundaries are rigid walls, the FPGA-based analysis system enhances performance from 44 to 217 times, and from 37 to 179 times against the software simulations based on the original DHM and Standard Leapfrog Finite-difference Time-domain (SLF-FDTD), respectively. Compared with the General-purpose Graphic Processing Unit (GPGPU) Tesla C1060, it speeds up by 1223 times in computation and by 114 times in overall performance in the case of time steps being 20,000. When the node scales are different and the calculated time steps are 32,000, the FPGA-based sound field solver achieves about 1795 and 1190 times faster in computation, 218 and 179 times enhancement in final performance over the software simulations based on the original DHM and SLF-FDTD, respectively. Furthermore, the proposed system provides high data throughput, and is easily applied in real-time applications.
Rights: Copyright (C)2014, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license (CC BY-NC-ND 4.0). [http://creativecommons.org/licenses/by-nc-nd/4.0/] NOTICE: This is the author's version of a work accepted for publication by Elsevier. Tan Yiyu, Yasushi Inoguchi, Yukinori Sato, Makoto Otani, Yukio Iwaya and Takao Tsuchiya, Microprocessors and Microsystems, 38(3), 2014, 216-225, http://dx.doi.org/10.1016/j.micpro.2014.02.001
URI: http://hdl.handle.net/10119/13462
資料タイプ: author
出現コレクション:e10-1. 雑誌掲載論文 (Journal Articles)

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