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中文核心期刊

Volume 30 Issue 2
Aug.  2022
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GONG Zaixiao, ZHANG Renhe, LI Xiulin, WU Lixin. Experimental research on sound pulse propagation and channel match in shallow water[J]. ACTA ACUSTICA, 2005, 30(2): 108-114. DOI: 10.15949/j.cnki.0371-0025.2005.02.003
Citation: GONG Zaixiao, ZHANG Renhe, LI Xiulin, WU Lixin. Experimental research on sound pulse propagation and channel match in shallow water[J]. ACTA ACUSTICA, 2005, 30(2): 108-114. DOI: 10.15949/j.cnki.0371-0025.2005.02.003
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Experimental research on sound pulse propagation and channel match in shallow water

  • National Laboratory of Acoustics, Institute of Acoustics, The Chinese Academy of Sciences Beijing 100080

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  • PACS: 
    • 43.30  (Underwater sound)
  • Received Date: September 18, 2003
  • Revised Date: February 17, 2004
  • Available Online: August 04, 2022
    Graphical Abstract
    • Abstract
  • Theoretical and experimental research of low frequency pulse compression and channel match in shallow water sound channel were carried out based on 2000-Winter Yellow sea experiment. Using pulse compression method, signals with high signal to noise ratio (SNR) were received over range of 110 kilometers in the experiment. The SNR gain in the process is consistent with the theoretical prediction. The experimental measurement indicated that the channel is highly coherent over a time of 500 s. Channel match method was used to compensate the degradation of pulse compression SNR caused by the multipath propagation. And the SNR gain in the channel match process can be theoretically predicted. Experimental results show that low frequency pulse compression and channel match method can be used in shallow water sound channel to improve the SNR.
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