| 黄益旺.海洋环境噪声空间相关特性建模综述*[J].,2019,38(4):729-733 |
| 海洋环境噪声空间相关特性建模综述* |
| Review of the spatial correlation modeling of ocean ambient noise |
| 投稿时间：2019-01-14 修订日期：2019-07-01 |
| 中文摘要: |
| 相对于大多数声纳,海洋环境噪声通常被视为背景干扰。水听器基阵的信噪比增益成为了基阵设计和性能估计的重要参数。从空间相关特性的角度看,当信号场已知时,阵增益可唯一由噪声场的空间相关特性来确定,这就是海洋环境噪声空间相关特性建模的动机。根据环境和声场之不同,文献中已给出几种不同的噪声场模型。为了阐明已有模型的特点及未来的研究方向,本文对噪声场空间相关特性建模做了简要综述。 |
| 英文摘要: |
| Ocean ambient noise is usually considered to be the background interference for most of sonar systems. Thus the quantity Signal-to-Noise Ratio (SNR) gain becomes the key parameter for the design and performance estimation of a hydrophone array, which is usually called array gain. From the point of view of spatial correlation array gain can be only determined by the spatial property of the interference field when the knowledge of the expected acoustic field is given. This is the motivation for ocean ambient noise modeling and several models for the calculation of correlation coefficients were presented in the literatures corresponding to different environments and noise fields. In order to clarify the characteristics of those given models and demonstrate the research directions of ocean ambient noise in the future, some reviews of correlation modeling were presented in this paper. |
| DOI：10.11684/j.issn.1000-310X.2019.04.033 |
| 中文关键词: 体积噪声,界面噪声,空间相关,水平分层介质,距离有关波导 |
| 英文关键词: Volume noise, Surface noise, Spatial correlation, Horizontally stratified media, Range-dependent waveguide |
| 基金项目:(50909028) |
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| 摘要点击次数: 1813 |
| 全文下载次数: 1901 |
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