首页> 外文学位 >An investigation into the acoustic variability and the attenuation of an acoustic signal within a port environment focusing on Port Everglades, Florida.
【24h】

An investigation into the acoustic variability and the attenuation of an acoustic signal within a port environment focusing on Port Everglades, Florida.

机译:对以佛罗里达州埃弗格莱兹港为中心的港口环境中的声音变异性和声音信号衰减的研究。

获取原文
获取原文并翻译 | 示例

摘要

A methodology for characterizing the acoustical properties of a port environment, namely Port Everglades, has been proposed and carried out. This approach includes both a port-wide analysis of how the basic oceanographic features within the port impact the acoustic properties, and also a more focused sampling methodology within a small region of Port Everglades, allowing for the acoustic characteristics, including ambient noise, and an approximate signal absorption to be computed.; The results documented through the duration of this research indicate that the temperature variation throughout the port is the principal contributor to the characteristics of the sound velocity profile. Ambient noise measurements have revealed high levels of background noise within the sub-5 kHz region, owing likely to consistent port traffic. The calculation of absorption indicates that high frequency systems, i.e. >100 kHz, may encounter problems when transmitting over a considerable distance. These are important factors for consideration when implementing a successful underwater acoustic system.
机译:已经提出并执行了表征港口环境的声学特性的方法,即大沼泽地港。这种方法不仅包括对港口内基本海洋学特征如何影响声学特性的全港范围分析,还包括在大沼泽地港的一小片区域内更加集中的采样方法,包括声学特性,包括环境噪声,以及要计算的近似信号吸收率;在整个研究过程中记录的结果表明,整个端口的温度变化是声速分布特征的主要因素。环境噪声测量结果表明,由于可能存在一致的端口流量,因此在5 kHz以下的区域内存在高水平的背景噪声。吸收率的计算表明,在远距离传输时,> 100 kHz的高频系统可能会遇到问题。这些是实施成功的水下声学系统时需要考虑的重要因素。

著录项

  • 作者

    Sheahan, Daniel.;

  • 作者单位

    Florida Atlantic University.;

  • 授予单位 Florida Atlantic University.;
  • 学科 Engineering Marine and Ocean.
  • 学位 M.S.
  • 年度 2007
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋工程;
  • 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