Advanced Search
Volume 29 Issue 5
Jan.  2011
Turn off MathJax
Article Contents
Chen Shao-hua, Xiang Jing-lin, Shi Jie, Han Peng . Theoretical and Experimental Exploration on Two-Dimensional DOA Estimation for Low Frequency Sound Source with Non-typical Vector Acoustic Intensity Array[J]. Journal of Electronics & Information Technology, 2007, 29(5): 1045-1049. doi: 10.3724/SP.J.1146.2005.01302
Citation: Chen Shao-hua, Xiang Jing-lin, Shi Jie, Han Peng . Theoretical and Experimental Exploration on Two-Dimensional DOA Estimation for Low Frequency Sound Source with Non-typical Vector Acoustic Intensity Array[J]. Journal of Electronics & Information Technology, 2007, 29(5): 1045-1049. doi: 10.3724/SP.J.1146.2005.01302

Theoretical and Experimental Exploration on Two-Dimensional DOA Estimation for Low Frequency Sound Source with Non-typical Vector Acoustic Intensity Array

doi: 10.3724/SP.J.1146.2005.01302
  • Received Date: 2005-10-17
  • Rev Recd Date: 2006-04-19
  • Publish Date: 2007-05-19
  • A new method of two-dimensional DOA (Direction of Arrival) estimation for low frequency sound source with the non-typical vector acoustic intensity array of small size is proposed. This array consists of 4 sensors on the 3 orthogonal axes, so as to measure the 3 components of the vector acoustic intensity. The azimuth and pitch angles of the sound source can be estimated from the 3 intensity components. The estimation errors, including the finite difference approximation error (FDAE), the instrumentation channel mismatch error (ICME), and the error caused by ambient noise, are studied systematically. Experiments conducted in semi-anechoic chamber show that, after correcting the FDAE and ICME, the precision of DOA estimation in isotropic ambient noise is about 1o. Both theoretical analysis and experimental results validate the effectiveness of this method.
  • loading
  • Hickling R and Wei W. Use of pitch-azimuth plots in determining the direction of a noise source in water with a vector sound -intensity probe[J].J. Acoust. Soc. Am.1995, 97(2):856-866[2]Hutt D L and Hines P C, et al.. Measurement of underwater sound intensity vector. Proc. OCEANS '99 MTS/IEEE, Seattle, WA, 1999, vol.2: 717-722.[3]Hutt D L, Hines P C, and Young V. Measurement of underwater sound intensity and determination of source bearing angle. J. Acoust. Soc. Am, 2001, 110(5): 2740.[4]Young V W and Hines P C, et al.. Practical application of a tri-axial intensity array. J. Acoust. Soc. Am, 2003, 114(4): 2427.[5]刘勋. 体积目标的被动声定向方法和尺度估计研究.[博士论文]. 西安: 西北工业大学, 2000.[6]刘勋, 相敬林等. 基于声强度向量法的体积目标被动跟踪与尺度估计. 声学学报, 2001, 26(1): 41-50.[7]刘勋, 相敬林等. 基于声强向量法的体积目标定向和缩比实验研究[J].电子与信息学报.2002, 24(3):347-353浏览[8]刘勋, 相敬林等. 基于声强向量法和声压梯度法的水中目标定向. 兵工学报, 2001, 22(1): 90-94. Liu Xun and Xiang Jing-lin, et al.. Determination of bearings of underwater objects based on acoustic intensity and acoustic pressure gradient. Acta Armamentarii, 2001, 22(1): 90-94.[9]陈华伟, 赵浚渭. 基于矢量传感器复声强测量的低空目标二维波达方向估计.声学学报, 2004, 29(3): 277-282.[10]Thompson J K and Tree D R. Finite difference approximation errors in acoustic intensity measurements[J].Journal of Sound and Vibration.1981, 75(2):229-238[11]Burdic W S. Underwater Acoustic System Analysis. New Jerzey: Prentice-Hall Inc., 1991, chap. 10.[12]鄢社峰, 马远良等. 一种海洋宽带噪声场数值模拟方法. 声学技术, 2003, 22(1): 30~32. Yan She-feng and Ma Yuan-liang, et al.. A numerical method for simulating broadband undersea noise field for hydrophone array. Technical Acoustics, 2003, 22(1): 30~32.
  • 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

    Article Metrics

    Article views (3215) PDF downloads(823) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return