文章摘要
陈羽,倪明,张振慧.基于三子阵的组合水平时反阵被动定位性能研究[J].声学技术,2011,(5):391~394
基于三子阵的组合水平时反阵被动定位性能研究
Research on the performance of passive location with a combined horizontal time-reversal array made up of three sub-arrays
投稿时间:2010-11-22  修订日期:2011-02-21
DOI:
中文关键词: 水平时反阵  被动定位  有效孔径
英文关键词: horizontal array  passive location  effective aperture
基金项目:
作者单位E-mail
陈羽  chenyulm@163.com 
倪明   
张振慧   
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中文摘要:
      在海洋波导中,单个水平阵的被动时反定位性能随声源方位的改变而迅速下降。对于一个298基元、基元间隔为1m的单个水平阵而言,当声源入射方向偏离水平阵端射方向超过70°时,被动时反定位失效。针对单水平阵的这一不足,提出了一种由三个子阵组成的组合式水平阵,三个子阵之间夹角为60°,基元数分别为100、99、99,基元间隔为1m。不论声源方位如何,组合阵的有效孔径都不小于150m,在整个空间区域都能对目标实现有效的被动时反定位。
英文摘要:
      In the ocean wave-guide,the performance of the passive time-reversal location with a single horizontal array descends rapidly if the direction of the wave source changes.For a horizontal array of 298 hydrophones with 1 meter separation between two hydrophones,when the angle between the direction of the incident signal and the horizontal array line is more than 70 degree,the passive location will fail.In order to solve the problem,a combined horizontal array made up of three sub-arrays is put forward in this paper,the angle between the three arrays is 60 degree,the numbers of hydrophones of the three sub-arrays are 100,99,99,and the distance between every two hydrophones is 1 meter.No matter what the direction of the wave source is,the effective aperture of the combined array is more than 150 meters,which achieves effective passive location to the targets in all areas.
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