基于潜标测量的海洋环境噪声谱特性分析

笪良龙; 王超; 卢晓亭; 韩梅; 邓小花

doi:10.3969/j.issn.0253-4193.2014.05.006

基于潜标测量的海洋环境噪声谱特性分析

doi: 10.3969/j.issn.0253-4193.2014.05.006

1.
海军潜艇学院海军水下作战环境研究所, 山东青岛 266071
2.
总参气象水文局, 北京 100081
3.
国家海洋环境预报中心, 北京 100081

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出版历程
- 收稿日期: 2014-01-21
- 修回日期: 2014-02-17

The characteristic analysis of ambient sea noise spectrum based on submersible buoy

1.
Navy Submarine Academy, Naval Underwater Battlefield Environment Institution, Qingdao 266071, China
2.
The Meteorological and Hydrological Bureau, Beijing 100081, China
3.
The National Marine Environment Forecast Center, Beijing 100081, China

摘要

摘要: 利用海洋环境噪声测量潜标系统对南海典型海域开展了为期3个月的海洋环境噪声测量，16通道海洋环境噪声测量系统每小时测量两分钟噪声信号。数据处理结果表明，800~5 000 Hz范围内，噪声谱与风速相关性最好，且风速越大相关性越好，噪声谱与风速的相关性好于与浪高的相关性。风关噪声谱级在海水中部基本不随接收深度发生变化，但由于测量水听器阵长度未能覆盖整个水深，因此未给出海面和海底处谱级变化规律。在400 Hz以上的高频段整个风速范围内噪声谱级都随风速发生变化，且噪声谱级与对数风速具有很好的线性关系。
- 海洋环境噪声 /
- 潜标系统 /
- 相关性 /
- 风生噪声
Abstract: Ambient sea-noise data were collected for three month period,using submersible buoy system in the South China Sea. Broad-band ambient-noise signals from the sixteen hydrophones were amplified and recorded for 2min every 1h. The results of data processing show a strong wind dependence in the upper frequency bands from approximately 800 Hz to 5 kHz,and the greater the wind speed,the better the correlation. The noise is correlated more with wind speed than with wave height. The wind-generated spectrum level producing virtually constant noise intensity in the midwater,however,due to the length of the hydrophone failed to cover the entire depth,the distribution of the noise at the near-surface and near-bottom unable to given. In the frequencies above 400 Hz ambient-noise spectrum level ranged with the entire wind speeds. In addition it was found that the ambient-noise spectrum shown to be linearly dependent upon the logarithm of wind speed.
- ambient noise /
- submersible buoy system /
- correlation /
- wind-generated noise

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参考文献(9)

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