文章摘要
王永丰,王昭辉.超波束处理方法的快速实现及试验验证[J].声学技术,2012,(5):522~525
超波束处理方法的快速实现及试验验证
Fast implementation of hyper beam method and its performance evaluation
投稿时间:2011-09-28  修订日期:2011-11-01
DOI:10.3969/j.issn1000-3630.2012.05.015
中文关键词: 超波束  波束形成  匹配滤波
英文关键词: hyper-beam  beamforming  matched filter
基金项目:
作者单位E-mail
王永丰 中国科学院声学研究所,北京 100190 wyf@mail.ioa.ac.cn 
王昭辉 康涅狄格大学电子与计算机工程系,美国康涅狄格州 06269  
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中文摘要:
      提出了超波束处理方法在主动声纳中的快速实现方法.通过对阵元信号进行下变频降采样,并采用阵元信号先匹配滤波再波束形成的步骤,降低了信号处理的计算复杂度,使超波束处理方法易于在实时信号处理系统上实现.使用湖试数据处理结果验证了实现方法的正确性,并对超波束处理方法的性能进行了比较.
英文摘要:
      A fast implementation of the hyper-beamforming method is proposed. Rather than performing the hyper-beamforming with the received signal directly, we first downshift the received signal from passband to sideband, and pass the sideband signal through a matched filter operating at a lower sampling rate. The hyper-beams are then formed by using the matched filter output. Compared with traditional implementation of the hyper-beamforming method, the proposed method enjoys less computational complexity, hence the easiness to implement in the real systems. Extensive lake-trial results are presented to validate the performance of the proposed method.
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