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| 基于声强测量的近场声全息及其在水下声源声辐射分析中的应用 | |
| 引用本文： | 何元安, 何祚镛, 姜军. 基于声强测量的近场声全息及其在水下声源声辐射分析中的应用[J]. 声学学报, 1996, 21(4): 297-305. DOI: 10.15949/j.cnki.0371-0025.1996.04.002 |
| 作者姓名： | 何元安 何祚镛 姜军 |
| 作者单位： | 哈尔滨工程大学水声研究所，南京理工大学电子工程与光电技术学院 |
| 摘 要： | 基于声强测量的宽带声全息(BAHIM)是一种新的有效的声场重建技术,在获得了测量面(全息面)上两个切向声强分量后,利用BAHIM可以预报声源的辐射场及噪声源定位。本文给出了不同声源和参数下BAHIM数值分析结果,井利用自行研制的双通道自动扫描声强测量系统进行了水下声源近场声辐射的BAHIM实验,结果证实了该方法的有效性,它增强了分析和识别噪声源的能力。 |
| 收稿时间： | 1995-03-27 |
Nearfield acoustic holography based on intensity measurement and application in radiating analysis of underwater sound sources |
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| HE Yuanan, HE Zuoyong, JIANG Jun. Nearfield acoustic holography based on intensity measurement and application in radiating analysis of underwater sound sources[J]. ACTA ACUSTICA, 1996, 21(4): 297-305. DOI: 10.15949/j.cnki.0371-0025.1996.04.002 | |
| Authors: | HE Yuanan HE Zuoyong JIANG Jun |
| Abstract: | Broadband acoustic holography based on intensity measurement (BAHIM) is a new and powerful field reconstruction technique.It allows one to predict the sound radiating field from a source and locate sound noise sources by measuring the near field sound intensity distribution on a measurement plane (hologram).In this paper,numerical analysis for different sources and parameters of the hologram at sample are given.Moreover,by the automated scanning two-hydrophones sound intensity measurement systems,the experiment is carried out and the BAHIM method is applied to sound field analysis of submerged spherical sound source.The results demonstrate the effectiveness of BAHIM.As a technique,the BAHIM can greatly enhance the ability for us to analyze and discern noise sources. |
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