• 中国科技核心期刊
  • Scopus收录期刊
  • DOAJ收录期刊
  • JST收录期刊
  • Euro Pub收录期刊
Volume 18 Issue 3
 
Turn off MathJax
Article Contents
Article Navigation >  Journal of Unmanned Undersea Systems  > 2010  >  18(3): 192-196
LIU Zong-wei, SUN Chao. Experimental Study on Reflective Properties of Combined Underwater Targets[J]. Journal of Unmanned Undersea Systems, 2010, 18(3): 192-196. doi: 10.11993/j.issn.1673-1948.2010.03.007
Citation: LIU Zong-wei, SUN Chao. Experimental Study on Reflective Properties of Combined Underwater Targets[J]. Journal of Unmanned Undersea Systems, 2010, 18(3): 192-196. doi: 10.11993/j.issn.1673-1948.2010.03.007
shu

Experimental Study on Reflective Properties of Combined Underwater Targets

doi: 10.11993/j.issn.1673-1948.2010.03.007

  • College of Marine Engineering, Northw estern Polytechnical University, Xi’an 710072, China

  • Received Date: 2009-03-10
  • Rev Recd Date: 2009-11-30
  • Publish Date: 2010-06-30
    Abstract
  • Acoustic scattering theory shows that acoustically soft reflectors provide higher target strength values than similarly sized hard reflectors. This study focused on the reflective properties of water bubbles and air cylinders, which show the resonance characteristics in low frequency and correspondingly provide larger target strength values. The reflective properties of the plane array of bubbles and cylinders were studied through water-tank experiment with physical models, and the bubbles or cylinders were found could be taken as a basic unit to form a combined underwater target in accordance with the requirements. The experiment demonstrated that when the wave length is much longer than the bubble spacing, the individual bubbles are not acoustically resolved, and the plane array of bubbles or air cylinders can be equivalent to a thin homogeneous air plate with reflectivity of -1.

     

    • FullText(HTML)
  • loading
    • References(10)
  • [1]
    Tw ersky V. Mu ltip le Scattering o f Radiation by an A rb itrary Configura tion o f Para llel Cy linders [J]. JASA,1952, 24( 1): 42??46.
    [2]
    Roy R A, CareyW. Low??frequency Scatter ing From Sub??m erged Bubble C louds[J]. JASA, 1992, 92( 5 ): 2993??2996.
    [3]
    M alm e C, Jam eson D, M cE lroy P, et a .l Deve lopm ent o f aH igh Targe t S trength Passive Acoustic Re flecto r for LowFrequency SonarApp lications, 7843[R]. BBN Techn ica lReport, 1993.
    [4]
    Ne ro R W, Thom pson C H, Feu illade C, e t a .l A H igh lyRe flective Low Cost Backscatte ring Target [J]. JASA,2001, 26( 2): 259??265.
    [5]
    Stan ton T K. Sound Scattering by Cy linders of F in iteLength, I. Flu id Cy linde rs[J]. JASA, 1988, 83( 1 ): 55??63.
    [6]
    Stanton T K. S imp le Approx im ate Form ulas fo rB ackscatter ing o f Sound by Spherical and E longated Objects[J].JASA, 1989, 86( 4): 1499??1510.
    [7]
    Dev in C. Survey o f Therm a,l Radiation, and V iscousDam ping of Pu lsating A ir Bubb les inW a ter[J]. JASA,1959, 31( 12): 1654??1667.
    [8]
    W eston D E. A coustic Interaction E ffec ts in Array s o fSm all Spheres[J]. JASA, 1966, 39( 5): 316-322.
    [9]
    U rick R J, Princ ip les of Underwa ter Sound [M ], 3rd.New Yo rk: M cGraw??H il,l 1983: 423.
    [10]
    刘宗伟. 组合式水下目标体反射特性研究[D]. 西安: 西北工业大学, 2008.L iu Zong??we .i Scatter ing Property o f the Com bined Un??derwa ter Targ ets[D] . X i??an: Northw estern Polytechn i??cal University, 2008.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF
    XML

    Article Metrics

    Article Views(1687) PDF Downloads(740) Cited by()
    Proportional views
    Related
    Service
    Subscribe
    Copyright：陕ICP备09015163号Address:No. 96, Jinye Road, Xi'an, Shaanxi
    Code：710077Tel: 029-88327279QQ: 767358370
    Email: bianjibu705@sohu.com 767358370@qq.com
    Email Alert RSS
    Taobao
    Micro

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return