| 超波束处理在被动声纳频谱分析中的应用 |
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| 引用本文： | 周胜增,刘东涛,杜选民.超波束处理在被动声纳频谱分析中的应用[J].声学技术,2011(5):460-462. |
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| 作者姓名： | 周胜增 刘东涛 杜选民 |
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| 作者单位： | 上海船舶电子设备研究所;海军驻426厂军事代表室; |
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| 摘 要： | 超波束技术(HBF)作为一种新的高分辨力波束形成方法,在阵列尺寸一定的条件下,能够同时降低主波束宽度和旁瓣,从而提高目标检测能力和定位精度.但超波束输出丢失了信号相位信息,无法进行侦听和频谱分析等后置处理.对常规HBF进行了改进,利用HBF输出对常规的波束形成(CBF)进行加权,在保证高分辨力和低旁瓣的同时,又保留了波...
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| 关 键 词： | 被动声纳 低频分析与历程显示 超波束 |
| 收稿时间： | 2009/10/30 0:00:00 |
| 修稿时间： | 2010/1/10 0:00:00 |
Application of hyper-beamforming in spectrum analysis of passive sonar |
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| ZHOU Sheng-zeng,LIU Dong-tao and DU Xuan-min.Application of hyper-beamforming in spectrum analysis of passive sonar[J].Technical Acoustics,2011(5):460-462. |
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| Authors: | ZHOU Sheng-zeng LIU Dong-tao and DU Xuan-min |
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| Affiliation: | ZHOU Sheng-zeng1,LIU Dong-tao2,DU Xuan-min1(1.Shanghai Marine Electronic Equipment Research Institute,Shanghai 201108,China,2.Representative Office of Navy at 426 Factory,Dalian 116005,Liaoning,China) |
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| Abstract: | Hyper-beamforming(HBF) can meantime reduce the mainlobe width and sidelobe levels when the size of array is defined,so the detection ability and parameter estimation precision of targets can be improved.However,the post processing of interception and spectrum analysis can not be done for HBF because of losing the phase information of output.In this paper,the conventional hyper-beam technique is improved by weighting conventional beamforming(CBF) with the hyper-beam output.The phase of beam output is maintai... |
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| Keywords: | passive sonar Low Frequency Analysis and Recording(LOFAR) hyper-beamforming |
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