计算机应用 ›› 2012, Vol. 32 ›› Issue (05): 1457-1459.

• 典型应用 • 上一篇    下一篇

基于麦克风阵列的声源定位系统

陶巍1,刘建平2,张一闻2   

  1. 1. 武警工程大学 研究生管理大队,西安 710086
    2. 武警工程大学 通信工程系,西安 710086
  • 收稿日期:2011-10-10 修回日期:2011-12-05 发布日期:2012-05-01 出版日期:2012-05-01
  • 通讯作者: 陶巍
  • 作者简介:陶巍(1988-),男,湖北武汉人,硕士研究生,主要研究方向:无线通信;刘建平(1967-),男,陕西凤翔人,教授,博士,主要研究方向:数字信号处理、无线通信;张一闻(1978-),男,内蒙古商都人,副教授,博士,主要研究方向:无线通信。
  • 基金资助:

    国家自然科学基金资助项目 (60940007)

Sound source localization system based on microphone array

TAO Wei1,LIU Jian-ping2,ZHANG Yi-wen2   

  1. 1. Postgraduate Managing Unit, Engineering University of Armed Police Force, Xi'an Shaanxi 710086, China
    2. Communication Engineering Department, Engineering University of Armed Police Force, Xi'an Shaanxi 710086, China
  • Received:2011-10-10 Revised:2011-12-05 Online:2012-05-01 Published:2012-05-01
  • Contact: TAO Wei

摘要: 推导出声音传播的近场模型,采用相位变换(PHAT)作为加权函数的广义互相关算法(GCC)完成时延差估计,再采用基于数据关联的时延选择算法选择时延,最后使用到达时延差的算法估计声源方位,并在算法模型的基础上搭建了基于数字信号处理器(DSP)的声源定位硬件系统开发平台。实验结果表明,在声音传播的近场模型下该系统角度估计误差不大于3°。

关键词: 麦克风阵列, 数据关联, 声源定位, 到达时延差, 数字信号处理器

Abstract: The precise near field model of sound transmission was deduced. Generalized Cross Correlation (GCC) algorithm based on Phase Transform (PHAT) was adopted to estimate time-delay, and a time-delay selection algorithm based on data relation was also put forward. Then the time difference of arrival algorithm was used for sound source localization, by which the development platform was built based on the DSP auditory localization hardware system. The results show that the error of the angle estimate is less than 3° in near field model of sound transmission.

Key words: microphone array, data relation, sound source localization, time difference of arrival, Digital Signal Processor (DSP)

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