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Volume 18 Issue 4
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2010  >  18(4): 258-262
FENG Qi. Strength Prediction of Underwater Complicated Target Based on Planar Element Method[J]. Journal of Unmanned Undersea Systems, 2010, 18(4): 258-262. doi: 10.11993/j.issn.1673-1948.2010.04.005
Citation: FENG Qi. Strength Prediction of Underwater Complicated Target Based on Planar Element Method[J]. Journal of Unmanned Undersea Systems, 2010, 18(4): 258-262. doi: 10.11993/j.issn.1673-1948.2010.04.005
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Strength Prediction of Underwater Complicated Target Based on Planar Element Method

doi: 10.11993/j.issn.1673-1948.2010.04.005

  • The 750 Representative Office of Guangzhou Bureau, Kunming 650051, China

  • Received Date: 2010-02-01
  • Rev Recd Date: 2010-04-02
  • Publish Date: 2010-08-30
    Abstract
  • When underwater complicated target is irradiated by high frequency signals, the comprehensive effect of all parts on sonar irradiation plays an important role in the reflection of the target. Aiming at this problem, the planar element method is introduced into sonar target computation. The surface of any arbitrary shape target is divided into many small curved faces by 3DS MAX software, which are approximated by planar elements. Then underwater complicated target strength is predicted by Kirchhoff acoustic scattering theory. The present method has solved the problems that the existing acoustic high light model is inaccurate because of ignoring the geometry of target, and the numerical integration can not calculate the target strength of irregular objects. The availability of the present method is verified by numerical calculation and experiment.

     

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