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Volume 20 Issue 2
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2012  >  20(2): 107-110
ZHAO Jun, WU Di-xiao. Propagation Property of Short Range High-frequency Radiated Noise Con-sidering Sea Surface Scattering Effect[J]. Journal of Unmanned Undersea Systems, 2012, 20(2): 107-110. doi: 10.11993/j.issn.1673-1948.2012.02.006
Citation: ZHAO Jun, WU Di-xiao. Propagation Property of Short Range High-frequency Radiated Noise Con-sidering Sea Surface Scattering Effect[J]. Journal of Unmanned Undersea Systems, 2012, 20(2): 107-110. doi: 10.11993/j.issn.1673-1948.2012.02.006
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Propagation Property of Short Range High-frequency Radiated Noise Con-sidering Sea Surface Scattering Effect

doi: 10.11993/j.issn.1673-1948.2012.02.006

  • Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China

  • Received Date: 2011-05-25
  • Rev Recd Date: 2011-08-16
  • Publish Date: 2012-04-20
    Abstract
  • Aiming at the urgent demand of constructing short range anti-torpedo system, we investigate the propagation property of torpedo′s near-field high-frequency radiated noise. We analyze the acoustic scattering properties of rough sea surface using the small slope approximation(SSA), give the expression of second-order to fourth-order SSA bistatic scattering coefficient for the rough sea surface with Gaussian distribution, and discuss the variation law of second-order SSA bistatic scattering coefficient with different sea surface roughness and incidence angle. The scattering field of un-derwater high-frequency radiated noise is calculated by using the SSA bistatic scattering coefficient. Simulation result shows that the scattering effect of sea surface should be considered in studying the propagation property of high- fre-quency radiated noise with source/receiver near sea surface.

     

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