HE Jin and LIU Zhong, “Two-Step Azimuth and Elevation Angle Estimation with Vector Hydrophone Array,” Chinese Journal of Electronics, vol. 18, no. 4, pp. 754-758, 2009,
Citation: HE Jin and LIU Zhong, “Two-Step Azimuth and Elevation Angle Estimation with Vector Hydrophone Array,” Chinese Journal of Electronics, vol. 18, no. 4, pp. 754-758, 2009,

Two-Step Azimuth and Elevation Angle Estimation with Vector Hydrophone Array

  • Received Date: 2007-07-01
  • Rev Recd Date: 2009-05-01
  • Publish Date: 2009-11-25
  • This paper proposes a new 2D directionfinding algorithm using vector hydrophone array. A vector hydrophone comprises of two or three velocity hydrophones plus an optional pressure hydrophone, all spatially co-located in a point-like geometry. The velocity hydrophones are identical but orthogonally oriented, measuring one Cartesian component of the incident sonar wavefield's velocity-vector. The pressure hydrophone measuresthe acoustic pressure in the wavefield. The proposed algorithm realizes the 2D direction estimation via two steps.In the first step, a pressure-particle-velocity field vectorsmoothing root-MUSIC algorithm is presented to estimatesources' elevation angles. In the second step, the estimatedelevation angles are applied to extract the direction cosinesand then to estimate sources' azimuth angles. Comparedwith most of the previous algorithms, the proposed algorithm offers advantages as: (1) uses the pressure-particlevelocity field vector sensor smoothing, which enables to offer more accurate elevation angles' estimates for correlatedsources, without losing of array aperture; (2) requires nospectral searching and direction cosine pairing-match procedures. Monte-Carlo simulations are presented to verifythe proposed algorithm's effectiveness.
  • loading
  • 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 (662) PDF downloads(1544) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return