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一种海洋宽带噪声场数值模拟方法
引用本文:鄢社锋,马远良,倪晋平,杨坤德.一种海洋宽带噪声场数值模拟方法[J].声学技术,2003,22(1):30-32.
作者姓名:鄢社锋  马远良  倪晋平  杨坤德
作者单位:西北工业大学声学工程研究所,西安,710072
基金项目:国家自然科学基金资助课题
摘    要:本文研究了在水声基阵设计中用数值模拟产生海洋宽带环境噪声场的方法。通过设计宽带特殊频率响应滤波器和精确时延滤波器来构造海洋宽带空间均匀噪声场中的阵列信号(噪声),并给出了圆环形阵的计算机模拟。计算机模拟结果验证了该方法的实用性和有效性。该方法能够较真实地模拟出海洋宽带环境噪声中任意基阵接收的阵列数据。

关 键 词:宽带噪声场  数值模拟  特定频率响应  水声基阵
文章编号:1000-3630(2003)01-0030-03
收稿时间:2001/12/17 0:00:00
修稿时间:2002/3/12 0:00:00

A numerical method for simulating broadband undersea noise field for hydrophone array
YAN She-feng,MA Yuan-liang,NI Jin-ping and YANG Kun-de.A numerical method for simulating broadband undersea noise field for hydrophone array[J].Technical Acoustics,2003,22(1):30-32.
Authors:YAN She-feng  MA Yuan-liang  NI Jin-ping and YANG Kun-de
Affiliation:Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi''an 710072, China;Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi''an 710072, China;Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi''an 710072, China;Institute of Acoustic Engineering, Northwestern Polytechnical University, Xi''an 710072, China
Abstract:A numerical method for simulating broadband undersea noise field is proposed in this paper.The key points are the creation of broadband digital filter with specific frequency response to match the required spectrum of undersea noise,and the design of precise time delay filters on which broadband outputs of a hydrophone array in undersea isotropic noise field can be generated.Computer simulation for a circular array is performed.It is shown that the method is effective and practical for application.
Keywords:broadband noise field  numerical simulation  specific frequency response  hydrophone array
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