一种深海直达波区近水面声源定位方法研究
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- 英文论文题名：A near-surface-source-localization method in the direct-arrival zone in deep water
- 论文作者：孙梅
- 英文论文作者：SUN Mei ; School of Physics and Electronic Engineering ; Taishan University
- 年：2016
- 作者机构：泰山学院物理与电子工程学院;
- 论文关键词：深海直达波区 ; 声源定位 ; 矢量水听器
- 英文论文关键词：direct-arrival zone in deep water ; source localization ; vector sensor
- 会议召开时间：2016-10-28
- 会议录名称：2016年全国声学学术会议论文集
- 语种：中文
- 分类号：P733.2;TB56
- 学会代码：OGSM
- 会议名称：2016年全国声学学术会议
- 会议地点：中国湖北武汉
- 主办单位：中国声学学会
- 学会名称：中国声学学会
- 页数：4
- 文件大小：527k
- 原文格式：D
- 会议级别：全国
摘要
深海声源定位是海洋声学研究的重要内容,目前报道的有关深海声源的定位方法主要利用水听器(阵)获取的声压信息。矢量水听器在浅海目标方位估计、水下声源定位等方面有重要应用,基于矢量水听器的深海声源定位方法值得研究。2014年在某深海海域进行的水声综合考察实验中,布放在水下3146 m深处的矢量水听器成功地接收到了深度为140 m的拖曳声源发射的实验信号。本文结合深海直达波区的声场特性,提出利用矢量水听器测量信号估计声线到达角,并进一步根据声线到达角对直达波区近水面声源的距离进行估计,同时还利用矢量水听器测量信号对声源方位进行估计。实验数据处理结果表明,估计的声源距离和方位与实验测量结果基本一致。
Source localization in deep water has attracted much attention in the past decades. However, most published localization methods only use the information of sound pressure in sound field. Vector sensor is an important kind of underwater acoustic sensor, which has been widely used in azimuth estimation and source localization in shallow water. During a deep-water experiment held in 2014, a vector sensor located at the depth of 3146 m received the experimental signals launched by a transducer towed at about 140 m. In this paper, a source localization method in the direct-arrival zone in deep water is proposed based on the information acquired by the vector sensor. It is shown that the estimated source ranges and azimuths are in agreement with the results of the experimental measurements.
Source localization in deep water has attracted much attention in the past decades. However, most published localization methods only use the information of sound pressure in sound field. Vector sensor is an important kind of underwater acoustic sensor, which has been widely used in azimuth estimation and source localization in shallow water. During a deep-water experiment held in 2014, a vector sensor located at the depth of 3146 m received the experimental signals launched by a transducer towed at about 140 m. In this paper, a source localization method in the direct-arrival zone in deep water is proposed based on the information acquired by the vector sensor. It is shown that the estimated source ranges and azimuths are in agreement with the results of the experimental measurements.
引文
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[2]Tran Q D,Hodgkiss W S.Matched-field processing of 200-Hz continuous wave(cw)signals[J].J.Acoust.Soc.Am.,1991,89(2):745-755.
[3]Tran Q D,Hodgkiss W S.Experimental observation of temporal fluctuations at the output of the conventional matched-field processor[J].J.Acoust.Soc.Am.,1991,89(5):2291-2302.
[4]Westwood E K.Broadband matched-field source localization[J].J.Acoust.Soc.Am.,1992,91(5):2777-2789.
[5]Duan R,Yang K D,Ma Y L,et al.Research on reliable acoustic path:Physical properties and a source localization method[J].Chin.Phys.B,2012,21(12):124301.
[6]陈连荣,彭朝晖,王光旭,等.深海海底反射区声源定位中的周期相似结构[J].中国科学:物理学力学天文学,2013,43:s153-s158.
[7]Wong K T,Zoltowski M D.Root-MUSIC-based azimuth-elevation angle-of-arrival estimation with uniformly spaced but arbitrarily oriented velocity hydrophones[J].IEEE Trans Signal Processing,1999,47(12):3250–3260.
[8]Wong K T,Zoltowski M D.Self-initiating MUSIC-based direction finding in underwater acoustic particle velocity-field beamspace[J].IEEE J Oceanic Eng,2000,25(2):262–273.
[9]Hawkes M,Nehorai A.Wideband source localization using a distributed acoustic vector-sensor array[J].IEEE Trans Signal Processing,2003,51(6):1479–1491