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Interaction between acoustic fields of the ambient noise and point surface source
  • 期刊名称:Chinese Journal of Acoustics
  • 时间:2010
  • 页码:1-10
  • 分类:P437[天文地球—大气科学及气象学] X827[环境科学与工程—环境工程]
  • 作者机构:[1]V.I. II'ichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences Russia, [2]Key Lab. of Underwater Acoustics Environment, Institute of Acoustics, Chinese Academy of Sciences, [3]Adm. G.I. Nevel'skoy Marine State University 690059, 50a, Verkhneportovaya St., Vladivostok, Russia
  • 相关基金:This work was Supported by the National Natural Science Foundation of China (10604062,10911120041) and the Russian Foundation for Basic Sciences.
  • 相关项目:浅海混响模空间特性研究
中文摘要:

在测量完全的声学的地向量性质任何一个或在周围的噪音精力流动和相对地指导的流动之间的部分取消,例如,放射了能由音调或塑造噪音的点来源是在那里的大小写无关紧要的 found.In 兴趣的协调或支离破碎的地 interact.The 现象被称为反对精力 fluxes.The 纸的赔偿集中于在表面噪音精力流动和反映底部的塑造噪音的 int 的垂直部件之间的相互作用

英文摘要:

In measuring acoustic field vector properties either complete or partial cancellation between ambient noise energy flux and the oppositely directed one, radiated, for instance, by tone or noise-shaped point source can be found. In that case there is no matter coherent or incoherent fields interact. The phenomenon of interest is named compensation of opposing energy fluxes. The paper is focused on interaction between vertical component of the surface noise energy flux and that of bottom-reflected noise-shaped interfering signal from on-water source in the deep open ocean. Bottom-reflected weak broadband interfering signal measures the extent of resultant compensation. As the vertical projection of the signal energy flux makes the interference maximum, its power appears to be comparable to that of the surface noise and complete compensation takes place at a given frequency. Once it is the interference minimum, just partial compensation can be found. No compensation was observed for co-directional energy fluxes.

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