| 屈茜,彭东立,朱安珏.基于ADCP测量的海浪方向谱研究[J].声学技术,2013,32(4):277~280 |
| 基于ADCP测量的海浪方向谱研究 |
| ADCP based direction spectrum estimation |
| 投稿时间：2013-03-16 修订日期：2013-06-20 |
| DOI：10.3969/j.issn1000-3630.2013.04.004 |
| 中文关键词: 海浪 方向谱 ADCP MLM |
| 英文关键词: ADCP Directional Spectrum MLM |
| 基金项目: |
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| 中文摘要: |
| 海洋方向谱的研究对于海洋预报、海上建设等人类海洋活动有重要的意义。介绍了一种利用声学多普勒流速剖面仪(Acoustic Doppler Current Profiler, ADCP)测量海浪方向谱的方法。通过计算ADCP测量的流速之间的交叉谱,利用最大似然算法可以得到海浪的方向谱。给出了利用ADCP估计方向谱的算法流程,进行了仿真,结果表明所提出的方法可以较准确地估计海浪方向谱。 |
| 英文摘要: |
| Measurements of ocean directional spectrum have significant impact on marine forecasting, marine construction and other human maritime activities. A method of measuring the directional spectrum by using the Acoustic Doppler Current Profiler (ADCP) is presented in this paper. Calculating the cross spectrum between the wave hight and the current velocity measured by ADCP and using the maximum likelihood algorithm (MLM) can derive the ocean directianl spectrum. The flowchat of the algorithm and the simulation result with this method are given, which shows that the algorithm can rather correctly estimate the ocean directional spectrum. |
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