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首页> 外文学位 >Estimating ocean wave directional spectra from measurements of water particle motion by a surface buoy acoustic ranging system.
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Estimating ocean wave directional spectra from measurements of water particle motion by a surface buoy acoustic ranging system.

机译：通过表面浮标声测距系统从水颗粒运动的测量值中估计海浪方向光​​谱。

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摘要

An instrumentation design is presented for estimating ocean wave directional spectra from measurements of water particle motion. For relatively shallow water and short term measurement applications, it is shown to be an effective and reasonably accurate system for estimating ocean wave directional spectra. Specifically, water particle motion is measured using an underwater, acoustic, ranging system consisting of a surface projector buoy and suitable bottom mounted hydrophones. A continuous wave signal is emitted by the surface projector buoy and the resultant signal delays at each hydrophone provide slant range information for triangulating the buoy position. Signals from the buoy and hydrophones are recorded for later processing and analysis. A method for estimating wave amplitude, phase, and direction is also presented. Wave data obtained from a commercial bottom mounted pressure gauge serve as a reference for comparing water particle displacement measurements recorded by the instrumentation system. Similarly, aerial photographs taken of the wave field in the study area during the experiment were used as a reference for comparing wave directions.
机译：提出了一种仪器设计，用于根据水颗粒运动的测量值来估计海浪方向光​​谱。对于较浅水域和短期测量应用而言，它被证明是一种有效且合理准确的系统，可用于估计海浪方向频谱。具体而言，使用水下声测距系统测量水颗粒的运动，该系统由表面投影仪浮标和合适的底部安装水听器组成。水面投影仪浮标发出连续波信号，每个水听器的信号延迟为斜面浮标的位置提供了倾斜范围信息。记录来自浮标和水听器的信号，以供以后处理和分析。还提出了一种估计波幅，相位和方向的方法。从底部安装的商用压力表获得的波浪数据可作为比较仪器系统记录的水颗粒位移测量结果的参考。同样，实验期间研究区域内波场的航拍照片也被用作比较波方向的参考。

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  • 作者

    Benevides, Francis Leo, Jr.;

  • 作者单位

    University of Hawai'i at Manoa.;

  • 授予单位 University of Hawai'i at Manoa.;
  • 学科 Ocean engineering.;Remote sensing.;Electrical engineering.
  • 学位 Ph.D.
  • 年度 1990
  • 页码 140 p.
  • 总页数 140
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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