| 超波束处理方法的快速实现及试验验证 |
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| 引用本文： | 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. |
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| 作者姓名： | 王永丰 王昭辉 |
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| 作者单位： | [1]中国科学院声学研究所,北京100190 [2]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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| 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。
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| 关 键 词： | 超波束 波束形成 匹配滤波 |
| 收稿时间： | 2011/9/28 0:00:00 |
| 修稿时间： | 2011/11/1 0:00:00 |
Fast implementation of hyper beam method and its performance evaluation |
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| WANG Yong-feng and WANG Zhao-hui.Fast implementation of hyper beam method and its performance evaluation[J].Technical Acoustics,2012(5):522-525. |
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| Authors: | WANG Yong-feng and WANG Zhao-hui |
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| Affiliation: | 1.Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China;2.Department of Electrical ＆ Computer Engineering,University of Connecticut,Storrs,CT 06269,USA) |
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| Abstract: | 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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| Keywords: | hyper-beam beamforming matched filter |
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