• Title/Summary/Keyword: 양상태 비상관 잔향음

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Long range incoherent seafloor reverberation model based on coupled normal mode method (연성모드법 기반의 원거리 비상관 해저면 잔향음 모델)

  • Park, Jungyong;Choo, Youngmin;Lee, Keunhwa;Seong, Woojae
    • The Journal of the Acoustical Society of Korea
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    • v.35 no.4
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    • pp.243-252
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    • 2016
  • In this paper, the incoherent reverberation model based on coupled normal mode method is presented. In the range dependent environment, one way coupled normal mode method is used to calculate the pressure from a source to a scatterer patch and the pressure from a scatterer patch to a receiver. For the computational efficiency, the sound propagation from a source/receiver to the scatterer patch is assumed to occur only in the 2D plane where a source/receiver and scatterer patch are located. For the model verification, problems of the reverberation modeling workshop I and II sponsored by the US office of Naval Research are calculated and the results are compared with the incoherent reverberation model results based on the ray method.