文章摘要
王颖翠,陈励军.宽带盲波束形成与卷积混合盲源分离[J].声学技术,2003,(1):40~43
宽带盲波束形成与卷积混合盲源分离
Wideband blind beamforming and blind separation of convolved mixtures
投稿时间:2001-09-18  修订日期:2002-02-27
DOI:
中文关键词: 窄带盲波束形成  瞬时混合盲源分离  宽带盲波束形成  卷积混合盲源分离
英文关键词: narrowband blind beamforming  blind separation of instantaneous mixtures  wideband blind beamforming  blind sepa-ration of convolved mixtures
基金项目:
作者单位
王颖翠 东南大学无线电系, 南京, 210096 
陈励军 东南大学无线电系, 南京, 210096 
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中文摘要:
      盲波束形成是在不知道阵形、目标方位以及阵元响应等信息的情况下,只根据阵元输出恢复源信号。现有盲波束形成对窄带信号研究比较多,而对宽带信号盲波束形成论述较少。本文从信号模型、系统框图、处理目的三方面说明盲波束形成与盲源分离近似。并指出卷积混合模型盲源分离完全可以作为解决宽带信号盲波束形成问题的一种通用方法。
英文摘要:
      Blind beamforming is referred to as reconstructing desired signals given only the outputs of array and without the knowledge of sensor placement,direction of desired signals and sensor response.The currently available blind beamforming algorithms are usually concerned with narrowband signal beamforming,and the wideband situation is seldom discussed.This paper proposes a new viewpoint that blind beamforming is closely related to blind separation,and blind separation of convolved mixtures is a versatile method to resolve wideband blind beamforming problems.The proposed approach is explained in detail with respect to signal model,system configuration,and the objective of processing.
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