...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Japanese journal of applied physics >Measurement of Interference Structures of Ship-Radiated Noise in Shallow Water with Rock and Sand Bottom
【24h】

Measurement of Interference Structures of Ship-Radiated Noise in Shallow Water with Rock and Sand Bottom

机译：岩底砂在浅水中船舶辐射噪声干扰结构的测量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, the interference structures in the frequency domain are measured in the propagation of broadband acoustic waves in shallow water, which are composed of rock and sand bottom. The measured frequency range is from 20 to 2048 Hz, and the receiver is 500 m away from a source. As a broadband sound source, ship-radiated noise is employed and a vertical line array, which is composed of 10 hydrophones, serves as a receiver. The result shows that the interference cycle on the rock bottom is 312 Hz shorter than that on the sand bottom. It also shows that as the receiver depth increases, a smaller number of interference peaks appear thus, the interference cycle is longer. This result will be useful in the estimation of bottom properties in shallow water environments.
机译：在这项研究中，在由岩石和沙底组成的浅水宽带声波传播中，测量了频域中的干扰结构。测得的频率范围是20到2048 Hz，接收器距离信号源500 m。作为船用宽带噪声源，使用了舰船辐射的噪声，由10个水听器组成的垂直线阵列用作接收器。结果表明，岩石底部的干扰周期比沙子底部的干扰周期短312 Hz。它还表明，随着接收器深度的增加，出现的干扰峰数量会减少，因此干扰周期会更长。该结果对于浅水环境下的底物性能评估很有用。

著录项

  • 来源
    《Japanese journal of applied physics》 |2011年第7issue2期|p.07HG03.1-07HG03.2|共2页
  • 作者

    Jooyoung Hahn;

  • 作者单位

    Agency for Defense Development, Changwon, Gyeongnam 645-600, Korea;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号