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Article Navigation >  Journal of Unmanned Undersea Systems  > 2010  >  18(1): 014-20
WANG Xiao-yu, YANG Yi-xin. Bearing Estimation via Amplitude Comparison of Wide-band Constant Beamwidth Beams for Circular Array[J]. Journal of Unmanned Undersea Systems, 2010, 18(1): 014-20. doi: 10.11993/j.issn.1673-1948.2010.01.004
Citation: WANG Xiao-yu, YANG Yi-xin. Bearing Estimation via Amplitude Comparison of Wide-band Constant Beamwidth Beams for Circular Array[J]. Journal of Unmanned Undersea Systems, 2010, 18(1): 014-20. doi: 10.11993/j.issn.1673-1948.2010.01.004
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Bearing Estimation via Amplitude Comparison of Wide-band Constant Beamwidth Beams for Circular Array

doi: 10.11993/j.issn.1673-1948.2010.01.004

  • Institute of Acoustics Engineering, Northwestern Polytechnical University, Xi′an 710072, China

  • Received Date: 2008-10-29
  • Rev Recd Date: 2008-12-19
  • Publish Date: 2010-02-28
    Abstract
  • A method of wide-band beam amplitude comparison for bearing estimation is proposed. In the case of receiving wide-band plane wave signals by circular array, the estimated bearing value can be obtained by constant beamwidth beamforming and the following solution of a group of linear equations with three unknowns for the outputs of the constant beamwidth beams. The new method has smaller bearing estimation error than the wide-band beam amplitude comparison bearing estimation method based on the outputs of conventional wide-band beams of circular array. The simulation results verified the effectiveness and practicality of the proposed method

     

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