| 拖船辐射噪声的海试数据分析及特性仿真 |
| |
| 引用本文： | 张宾,孙长瑜.拖船辐射噪声的海试数据分析及特性仿真[J].声学技术,2007,26(5):798-801. |
| |
| 作者姓名： | 张宾 孙长瑜 |
| |
| 作者单位： | 1. 中国科学院声学研究所,北京,100080;青岛科技大学,青岛,266061
2. 中国科学院声学研究所,北京,100080 |
| |
| 摘 要： | 针对海试数据分析了拖船辐射噪声的特性,进而对拖船噪声进行了建模仿真。首先利用自相关的AR模型产生宽带连续谱噪声序列,并迭加线谱成分,构造一维时间序列,而后根据海洋环境条件以及拖线阵与拖船空间位置关系建立声传播路径模型,构建拖线阵的接收声场。仿真结果在时频特性以及空间特性上都与海试数据非常逼近。
|
| 关 键 词： | 声纳 拖船辐射噪声 波束形成 仿真 |
| 文章编号： | 1000-3630（2007）-05-0798-04 |
| 收稿时间： | 2006-06-12 |
| 修稿时间： | 2006-09-30 |
Sea trial data processing and tow ship noise simulation |
| |
| ZHANG Bin and SUN Chang-yu.Sea trial data processing and tow ship noise simulation[J].Technical Acoustics,2007,26(5):798-801. |
| |
| Authors: | ZHANG Bin and SUN Chang-yu |
| |
| Affiliation: | Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080, China |
| |
| Abstract: | Based on sea trail data processing,the characteristics of tow ship radiated noise are conclu-ded,and a model is established to simulate the noise. Firstly,one dimensional sequence is constructed by a broadband noise sequence generated from AR model,and several line spectrum components. Then accor-ding to ocean environment conditions and geometry positions of the towed array and tow ship,the rece-iving acoustic field is modeled by multi-path propagations of acoustic wave. The simulated data are quite similar to the sea trial data in time,frequency and spatial domains. |
| |
| Keywords: | sonar tow ship radiated noise beamforming simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《声学技术》浏览原始摘要信息 |
|
点击此处可从《声学技术》下载全文 |
|
