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Volume 27 Issue 6
Jul.  2022
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CAI Zhiming, ZHENG Zhaoning, YANG Shi'e. Chaos characteristic analysis of underwater reverberation[J]. ACTA ACUSTICA, 2002, 27(6): 497-501. DOI: 10.15949/j.cnki.0371-0025.2002.06.004
Citation: CAI Zhiming, ZHENG Zhaoning, YANG Shi'e. Chaos characteristic analysis of underwater reverberation[J]. ACTA ACUSTICA, 2002, 27(6): 497-501. DOI: 10.15949/j.cnki.0371-0025.2002.06.004
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Chaos characteristic analysis of underwater reverberation

  • 1. College of Electronic Engineering, Navy Engineering University Nanjing 211800;

  • 2. Underwater Acoustic Engineering Dept, Harbin Engineering University Harbin 150001

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  • PACS: 
    • 43.30  (Underwater sound)
  • Received Date: February 28, 2001
  • Revised Date: April 23, 2001
  • Available Online: July 31, 2022
    Graphical Abstract
    • Abstract
  • Reverberation time series recorded in laboratory cistern, lake field and sea field have been examined by nonlinear dynamical methods, in order to identify chaos characteristic from its random-like waveform and to modeling them by low dimensions nonlinear dynamics. The data we analyzed are related to many geographic locations, bottom types, underwater conditions and transmitted signals. The results indicate that the reverberation can be modeled as 4-dimensions dynamical system with a positive maximum Lyapunov exponent (0 < λ1 < 0.3), so it may reveal a new approach based on chaos to process reverberation time series.
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