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中文核心期刊

Volume 43 Issue 5
Jun.  2022
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YAN Shanyong, QIU Wei, ZHAO Erliang, WANG Zhanghong. The influence of vessel attitude on spatial-temporal correlation of sea-bottom reverberation[J]. ACTA ACUSTICA, 2018, 43(5): 745-752. DOI: 10.15949/j.cnki.0371-0025.2018.05.003
Citation: YAN Shanyong, QIU Wei, ZHAO Erliang, WANG Zhanghong. The influence of vessel attitude on spatial-temporal correlation of sea-bottom reverberation[J]. ACTA ACUSTICA, 2018, 43(5): 745-752. DOI: 10.15949/j.cnki.0371-0025.2018.05.003
shu

The influence of vessel attitude on spatial-temporal correlation of sea-bottom reverberation

  • 1. Ocean Acoustic Technology Center, Institute of Acoustics, CAS Beijing 100190;

  • 2. University of Chinese Academy of Sciences Beijing 100049;

  • 3. Beijing Engineering Technology Research Center of Ocean Acoustic Equipment Beijing 100190

More Information
  • PACS: 
    • 43.30  (水声学)
  • Received Date: March 31, 2017
  • Revised Date: June 11, 2017
  • Available Online: June 27, 2022
    Graphical Abstract
    • Abstract
  • The influence of vessel attitude on spatial-temporal correlation of sea-bottom reverberation has been discussed. The theoretical correlation function is deduced in consideration of the attitude of vessel. The relationship of the spatial-temporal correlation and the vessel attitude is obtained: The greater the sway of the vessel on some direction is, the faster the correlation coefficient decreases on the direction. The correlation flmctions of the theoretical derivation and the simulated data agree well when seafloor has no large-scale relief but has isotropic roughness. The actual seafloor usually has large-scale relief and anisotropic roughness. The vessel attitude and the large-scale relief cannot determine the shape of the correlation function, but trial data has proved their combined influence. In addition, the influence of the vessel attitude on the measurement of vertical velocity has been discussed.
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