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Development of a large-aperture coherent hydrophone array, data processing and analysis software system for instantaneous wide-area passive acoustic monitoring of marine mammals

海洋哺乳动物瞬时广域被动声监测大口径相干水听器阵列、数据处理与分析软件系统开发

基本信息

批准号：
1736749
负责人：
Purnima Makris
金额：
$ 71万
依托单位：
Northeastern University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-09-15 至 2022-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1736749&HistoricalAwards=false
关键词：
Development large aperture coherent hydrophone

项目摘要

This project aims to develop and provide high-resolution coherent hydrophone array hardware technology for compliance based marine mammal monitoring in support of seismic survey operations on UNOLs research vessels. A large-aperture densely-sampled hydrophone array system can provide significant enhancement in marine mammal vocalization detection by increasing signal-to-noise ratio via coherent beamforming which eliminates noise outside of the signal beam. Whale vocalizations not detected using a single hydrophone or sparse array can be extracted out of the noise floor by coherent beamforming with the large aperture hydrophone array system. The coherent beamforming also provides high-resolution estimates of whale vocalization bearings which are required for finding the range of the whale from the array and localizing the marine mammal in geographic space. In addition to the array hardware, the project also aims to develop a real-time array signal data acquisition, processing and analysis software to provide real-time detection, bearing-estimation, localization and tracking, and classification of marine mammal vocalizations received on the coherent hydrophone array hardware system. The hardware and software systems together make up the passive ocean acoustic waveguide remote sensing (POAWRS) technology.POAWRS is a transformative approach for ocean sensing, since it is capable of monitoring sound sources over instantaneous wide areas spanning 100 km or more in diameter. In addition to marine mammal vocalizations, the other sound sources detected by POAWRS include biology such as sounds from fish and crustaceans; geophysical processes such as hurricanes and submarine volcanoes; and man-made activities such as ships and other ocean vehicles, seismic airgun and sparker for earthquake plate tectonic studies and oil exploration, as well as offshore piling. The instantaneous continental-shelf scale environmental monitoring capability and temporal-spatial dynamics of sound sources revealed by POAWRS makes it an important technology that could become an indispensable tool in field operations, such as large-scale marine ecological studies, fisheries stock assessments and management, compliance-based marine mammal monitoring mandated by the Marine Mammal Protection Act in seismic surveys and naval sonar surveillance operations, as well as in studies of the effects of man-made sound on marine ecosystems. When combined with an active acoustic or seismic source, such as on the RV Langseth, the proposed instrumentation can be extended for large-scale imaging of objects and features in geophysical, fisheries, ecological and archeological surveys. The project provides an opportunity for training and development work to a diverse team that includes both women and under-represented minorities. The principal investigator has and will continue to host and provide opportunities for K-12 students, undergraduates and teachers to learn and contribute to ocean exploration and discovery through Northeastern University's STEM Education Center, Research Experience for Teachers (RET), Young Scholars Program (YSP) and various undergraduate research opportunity programs. They have and will continue to visit elementary, middle and high schools to provide demonstrations and hands-on training in ocean discovery and sensing through ocean sounds.

该项目旨在开发和提供高分辨率相干水听器阵列硬件技术，用于基于合规性的海洋哺乳动物监测，以支持联合国利比里亚办事处研究船上的地震调查作业。大孔径密集采样水听器阵列系统可以通过相干波束形成消除信号波束之外的噪声来提高信噪比，从而显著增强海洋哺乳动物发声检测。利用大孔径水听器阵列系统的相干波束形成，可以从噪声基底中提取出单个水听器或稀疏阵列无法检测到的鲸鱼发声。相干波束形成还提供了鲸鱼发声方位的高分辨率估计，这是从阵列中找到鲸鱼的范围并在地理空间中定位海洋哺乳动物所需的。除阵列硬件外，该项目还旨在开发实时阵列信号数据采集、处理和分析软件，以便对相干水听器阵列硬件系统接收到的海洋哺乳动物发声进行实时检测、方位估计、定位和跟踪以及分类。被动式海洋声波导遥感（POAWRS）是一种全新的海洋遥感技术，它能够对直径100 km以上的广域声源进行实时监测。除了海洋哺乳动物的发声外，POAWRS探测到的其他声源包括鱼类和甲壳类动物发出的声音等生物;飓风和海底火山等地球物理过程;以及船舶和其他海洋交通工具、地震气枪和用于地震板块构造研究和石油勘探的电火花以及海上打桩等人为活动。POAWRS所揭示的大陆架瞬时环境监测能力和声源的时空动态使其成为一项重要技术，可成为实地作业中不可或缺的工具，如大规模海洋生态研究、渔业资源评估和管理、《海洋哺乳动物保护法》规定的在地震调查和海军声纳监视行动中进行的基于遵守情况的海洋哺乳动物监测，以及研究人造声音对海洋生态系统的影响。当与诸如RV Langseth上的有源声学或地震源相结合时，拟议的仪器可以扩展到地球物理、渔业、生态和考古调查中的物体和特征的大规模成像。该项目为包括妇女和代表性不足的少数群体在内的多元化团队提供了培训和发展工作的机会。首席研究员已经并将继续主持并为K-12学生，本科生和教师提供机会，通过东北大学的STEM教育中心，教师研究经验（RET），青年学者计划（YSP）和各种本科生研究机会计划来学习和促进海洋探索和发现。他们已经并将继续访问小学、初中和高中，提供通过海洋声音发现和感知海洋的示范和实践培训。

项目成果

期刊论文数量（7）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Detection, Localization and Classification of Multiple Mechanized Ocean Vessels over Continental-Shelf Scale Regions with Passive Ocean Acoustic Waveguide Remote Sensing

DOI：
10.3390/rs10111699
发表时间：
2018-10
期刊：
Remote. Sens.
影响因子：
0
作者：
Chenyang Zhu;Heriberto A. Garcia;Anna Kaplan;Matthew Schinault;N. Handegard;O. Godø;Wei Huang-;P. Ratilal
通讯作者：
Chenyang Zhu;Heriberto A. Garcia;Anna Kaplan;Matthew Schinault;N. Handegard;O. Godø;Wei Huang-;P. Ratilal

Long Range Passive Ocean Acoustic Waveguide Remote Sensing (POAWRS) of Seismo-acoustic Airgun Signals Received on a Coherent Hydrophone Array

相干水听器阵列接收的震声气枪信号的远程无源海洋声波导遥感 (POAWRS)

DOI：
10.23919/oceans40490.2019.8962739
发表时间：
2019
期刊：
OCEANS 2019 MTS/IEEE SEATTLE
影响因子：
0
作者：
Seri, Sai Geetha;Zhu, Chenyang;Schinault, Matthew;Garcia, Heriberto;Handegard, Nils Olav;Ratilal, Purnima
通讯作者：
Ratilal, Purnima

Investigation and Design of a Towable Hydrophone Array for General Ocean Sensing

用于通用海洋传感的拖曳式水听器阵列的研究与设计