声速随深度变化时的声源定位：抹香鲸的测试案例

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-07-07 DOI:10.1016/j.apacoust.2025.110911

Yaakov Buchris , Yaniv Aluma , Roee Diamant

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引用次数: 0

摘要

抹香鲸（Physeter macrocephalus）是最大的齿鲸，是最深的潜水员之一，分布在世界各地。它们是密集的生物研究的焦点，用于分布分析、行为研究，以及最近通过CETI项目进行的语言处理。后者特别感兴趣的是研究它们的流动模式和分布范围，这需要了解它们的位置。在本文中，我们提供了一种被动声学监测（PAM）方法，通过部署在水面系泊处的接收器阵列来定位抹香鲸。我们的方案采用自适应波束形成进行定位，并考虑到水中不同的声速和鲸鱼的机动性。一系列的稳定性测试提高了定位的精度。数值结果研究了系统参数、变声速、系泊数和接收单元数的影响。真实的海洋实验结果回放抹香鲸在多米尼克岛的深水中发出的声音，证明了我们的方法的实用性，以及它对不同信噪比和范围的鲁棒性。为了确保再现性，我们提供了实现代码。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Source localization in the presence of depth-varying sound speed: A test case for sperm whales

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Source localization in the presence of depth-varying sound speed: A test case for sperm whales

Sperm whales (Physeter macrocephalus) are the largest of the toothed whales, amongst the deepest divers and are distributed worldwide. They are the focus of intensive biological research for distribution analysis, behavioral studies and, more recently, for language processing through Project CETI. Of particular interest for the latter is the study of their mobility patterns and distribution ranges, which requires knowledge of their location. In this paper, we offer a passive acoustic monitoring (PAM) approach for the localization of Sperm whales through arrays of receivers deployed from surface moorings. Our scheme performs adaptive beamforming for localization, and takes into account the varying sound speed in water and the whale's mobility. A series of stability tests increase the accuracy of positioning. Numerical results investigate the effect of system parameters, varying sound speed, number of moorings and number of receiving elements. Results from real sea experiments replaying sperm whale vocalizations in deep water across the Dominica Island demonstrate the practicality of our approach and its robustness for varying signal to noise ratios and range. To ensure reproducibility, we provide our implementation code.

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.