[1]马根卯,时胜国,于树华.矢量拖曳线列阵流噪声时-空相关特性研究[J].哈尔滨工程大学学报,2015,(01):57-61.[doi:10.3969/j.issn.1006-7043.201310011]
 MA Genmao,SHI Shengguo,YU Shuhua.Research on the temporal-spatial correlation of the flow-induced noise in the application of towed linear array[J].hebgcdxxb,2015,(01):57-61.[doi:10.3969/j.issn.1006-7043.201310011]
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矢量拖曳线列阵流噪声时-空相关特性研究
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《哈尔滨工程大学学报》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2015年01期
页码:
57-61
栏目:
出版日期:
2015-01-25

文章信息/Info

Title:
Research on the temporal-spatial correlation of the flow-induced noise in the application of towed linear array
作者:
马根卯1 时胜国23 于树华23
1. 杭州应用声学研究所, 浙江 杭州 310023;
2. 哈尔滨工程大学 水声技术重点实验室, 黑龙江 哈尔滨 150001;
3. 哈尔滨工程大学 水声工程学院, 黑龙江 哈尔滨 150001
Author(s):
MA Genmao1 SHI Shengguo23 YU Shuhua23
1. Hangzhou Applied Acoustic Institute, Hangzhou 310023, China;
2. Science and Technology on Underwater Acoustic Laboratory, Harbin Engineering University, Harbin 150001, China;
3. College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
关键词:
矢量水听器拖曳线列阵流噪声自功率谱相关性压力起伏Carpenter模型
分类号:
TB535
DOI:
10.3969/j.issn.1006-7043.201310011
文献标志码:
A
摘要:
为了降低矢量拖曳线列阵流噪声,提高矢量拖曳线列阵的工作性能,需要研究其流噪声场的分布规律,根据细长圆柱外表面湍流边界层(TBL)压力起伏的Carpenter模型,采用波数-频率谱分析方法导出拖线阵护套内圆柱形矢量水听器流噪声场声压和轴向质点振速及其时-空相关矩阵的一般表达式,并由数值积分法计算了流噪声场的空间相关性。数值计算结果表明:窄带流噪声轴向相关半径在几十厘米范围内,以半波长布阵的矢量拖曳线列阵各阵元所接收的流噪声在轴向上是近似不相关的;窄带流噪声径向相关性随着频率以及径向位置变化较大;宽带流噪声声压和轴向质点振速之间是近似不相关的,这也为后置信号处理算法抑制流噪声提供理论依据。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2013-10-8;改回日期:。
基金项目:水声技术重点实验室基金资助项目(9140C2002021001).
作者简介:马根卯(1986-),男,工程师;时胜国(1973-),男,教授,博士生导师.
通讯作者:时胜国,E-mail:shishengguo@hrbeu.edu.cn.
更新日期/Last Update: 2015-06-16