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SUN Junping, LIN Jianheng, YANG Jun, JIANG Guojian, YI Xuejuan, JIANG Pengfei. Propagation of quasi-periodic random sound pulse sequence signals in shallow-water waveguides[J]. ACTA ACUSTICA, 2017, 42(1): 21-26. DOI: 10.15949/j.cnki.0371-0025.2017.01.003
Citation: SUN Junping, LIN Jianheng, YANG Jun, JIANG Guojian, YI Xuejuan, JIANG Pengfei. Propagation of quasi-periodic random sound pulse sequence signals in shallow-water waveguides[J]. ACTA ACUSTICA, 2017, 42(1): 21-26. DOI: 10.15949/j.cnki.0371-0025.2017.01.003

Propagation of quasi-periodic random sound pulse sequence signals in shallow-water waveguides

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  • PACS: 
    • 43.30  (Underwater sound)
  • Received Date: December 20, 2015
  • Revised Date: April 14, 2016
  • Available Online: June 22, 2022
  • It is an efficient method to model ship radiated noise as quasi-periodic random sound pulse sequences. Based on the model, the characteristics changes of ship noises after through shallow-water waveguides are discussed. Theoretical analysis and numerical simulation show that random waveguides and multi-path effects can bring additional much transmission loss for the noise line spectra, demonstrating the instability of ship radiated noise line spectra to a certain extent, and providing some theoretical support for advanced studies of ship radiated noise.
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