文章摘要
李林剑,陈华伟.一种分布式双麦克风线阵声源定位方法[J].,2014,33(5):412-418
一种分布式双麦克风线阵声源定位方法
Speaker localization method using distributed double linear microphone arrays
投稿时间:2013-10-24  修订日期:2014-09-01
中文摘要:
      分布式麦克风阵列由于比传统的单阵列具有更大的空间孔径,可以获得更好的声源定位性能,因此基于分布式麦克风阵列的声源定位方法成为当前麦克风阵列领域研究的热点之一。本文研究了一种基于分布式双麦克风线阵的声源定位方法, 并进行了系统实现,从理论上剖析了该算法的定位精度与单阵列定向误差以及声源位置之间的关系,而且还揭示了声源高度扰动对该算法定位精度的影响。最后,分别通过仿真实验和实际定位系统的测试结果,验证了本文理论分析的正确性。
英文摘要:
      Sound localization using distributed microphone arrays has been one of the hot research topics, which is mainly due to the fact that the distributed microphone arrays have larger spatial apertures than their counterparts of compact microphone arrays, and hence can achieve higher performance. In this paper, a sound localization approach using distributed microphone arrays composed of two linear arrays, is studied, and a prototype to assess the performance of the approach is also built. The theoretical analysis is performed to show the effects of direction finding accuracy with the two linear arrays and the sound source position on the performance of the sound localization. Moreover, the effect of the perturbation of the height of sound source on sound localization performance is also investigated. Finally, simulation results and real-world test results with the prototype are presented to demonstrate the correctness of the theoretical analysis.
DOI:10.11684/j.issn.1000-310X.2014.05.006
中文关键词: 分布式麦克风阵列,声源定位, 性能分析
英文关键词: distributed microphone array, source localization, performance analysis
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
李林剑 南京航空航天大学 linjianli@nuaa.edu.cn 
陈华伟 南京航空航天大学 hwchen@nuaa.edu.cn 
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