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海洋矢量噪声场试验研究

DOI: doi:10.3969/j.issn.1006-7043.2011.01.004

Keywords: 水声学, 矢量声场, 矢量传感器, 试验研究

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Abstract:

为实现对近岸矢量声呐系统性能的预言,以近岸浅海试验为基础,对单矢量传感器噪声测量的基本理论做验证与分析.近岸港口区域,在无舰船螺旋桨噪声的情况下,声压与质点振速间保持较弱的相关性.由于垂直振速通道受海面风成波浪影响,相对于水平振速通道,与声压通道保持更低的相关性.相对于海洋动力噪声场,有限点源产生的相干声场的声压振速保持较好的相位相干性.在抑制各向同性噪声干扰方面,振速谱处理与有功声强器较之于单纯的声压谱处理,分别有5dB与10dB左右的背景噪声抑制能力.配合矢量传感器自身的水下方位信息,复声强器可以较出色的的对声源方位做出估计.近距单频声信号目标方位估计的标准差为4.5°.

References

[1]  孙贵青,杨德森,张林. 矢量水听器在水下目标低频辐射噪声测量中的应用[J]. 哈尔滨工程大学学报, 2001,22( 5) : 5-9. SUN Guiqing,YANG Desen,ZHANG Lin. Application of vector hydrophone to measurement of low frequency radiation noise from underwater target[J]. Journal of Harbin Engineering University,2001,22( 5) : 5-9.[11]孙贵青,杨德森,张揽月,等. 基于矢量水听器的最大似然比检测和最大似然方位估计[J]. 声学学报, 2003, 28 ( 1) : 66-72. SUN Guiqing,YANG Desen,ZHANG Lanyue, et al. Maximum likelihood ratio detection and maximum likelihood DOA estimation based on the vector hydrophone[J]. Acta Acustica, 2003, 28( 1) : 66-72.[12]孙贵青,杨德森,张揽月. 基于矢量水听器的水下目标低频辐射噪声测量方法研究[J]. 声学学报,2002,27 ( 5) : 429-434. SUN Guiqing,YANG Desen,ZHANG Lanyue. Research on the method for measuring radiated noise by an underwater target in low frequency band based on the vector hydrophone [J]. Acta Acustica,2002,27( 5) : 429-434.
[2]  惠俊英,惠娟. 矢量声信号处理基础[M]. 北京: 国防工第1 期邹吉武,等: 海洋矢量噪声场试验研究?19? 业出版社, 2009: 24-29. HUI Junying,HUI Juan. Fundamentals of vector sound signal processing [M]. Beijing: National Defense Industry Press,2009: 24-29.
[3]  HAWKES M,NEHORAI A. Acoustic vector-sensor correlations in ambient noise[J]. IEEE J of Oceanic Engineering, 2001,26( 3) : 337-347.
[4]  张宇,孙大军,吕云飞,等. 矢量水听器双潜标系统纯方位定位精度分析[J]. 哈尔滨工程大学学报,2010,31 ( 7) : 868-871. ZHANG Yu,SUN Dajun,LV Yunfei, et al. Analysis of location precision when using a dual subsurface-buoy system with a vector hydrophone[J]. Journal of Harbin Engineering University, 2010, 31( 7) : 868-871.
[5]  白兴宇,姜煜,赵春晖. 基于声压振速联合处理的声矢量阵信源数检测与方位估计[J]. 声学学报, 2008, 33( 1) : 56-61. BAI Xingyu, JIANG Yu,ZHAO Chunhui. Detection of number of sources and direction arrival estimation based on the combined information processing of pressure and particle velocity using acoustic vector sensor array[J]. Acta Acustica, 2008, 33( 1) : 56-61.
[6]  HAWKES M,NEHORAI A. Acoustic vector-sensor processing in the presence of a reflecting boundary[J]. IEEE Transactions on Signal Processing,2000,48 ( 11) : 2981- 2993.
[7]  王德俊,李风华. 基于单个矢量水听器和子空间旋转的宽容宽带双目标分辨与跟踪方法[J]. 声学学报, 2007, 32( 5) : 404-410. WANG Dejun,LI Fenghua. A robust separating and tracking method on two wideband sources by subspace rotation with one vector hydrophone[J]. Acta Acustica,2007,32 ( 5) : 404-410.
[8]  WONG K T,ZOLTOWSKI M D. Self-initiating MUSICbased direction finding in underwater acoustic particle velocity- field beamspace[J]. IEEE J of Oceanic Engineering, 2000, 25( 2) : 262-273.
[9]  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 on Signal Processing,1999,47 ( 12 ) : 3250- 3260.
[10]  BURENIN A V,MORGUNOV Y N,STROBYKIN D S. Experimental studies of the characteristic features of vector receivers in application to ocean tomography[J]. Acoustical Physics, 2007, 53( 6) : 694-697.

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