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WANG Wen-sheng, YANG Xiu-ting. Theoretical performance of near-field conventional beamforming by using linear array sonar[J]. Technical Acoustics, 2009, (6): 729-733.
Citation: WANG Wen-sheng, YANG Xiu-ting. Theoretical performance of near-field conventional beamforming by using linear array sonar[J]. Technical Acoustics, 2009, (6): 729-733.
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Theoretical performance of near-field conventional beamforming by using linear array sonar

    Abstract
  • The performance of passive localization via conventional beamforming(CBF) by using uniform linear array has been investigated in this paper.In order to locate the noisy underwater target-the heavy thermal powered torpedoes usually confronted in anti-submarine war(ASW),the asymptotic estimate error of CBF is analyzed and compared with the Cramer-Rao bound(CRB) to show the passive localization performance,thereafter,the factors such as the signal strength,target location,array aperture and observation time have also been investigated via numerical simulations.The results show that the middle-range passive localization of torpedoes can be probably solved by using the existing SONAR equipment(such as flank array SONAR).
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