计算机工程与应用 ›› 2015, Vol. 51 ›› Issue (2): 205-208.

• 信号处理 • 上一篇    下一篇

基于角度预估计的声源定位MUSIC算法实验研究

钟林波1,吉建华1,文小军1,王艳芬1,伍守豪2   

  1. 1.深圳大学 信息工程学院,广东 深圳 518060
    2.深圳清华大学研究院 DTV重点实验室,广东 深圳 518060
  • 出版日期:2015-01-15 发布日期:2015-01-12

Experimental study of speech source localization MUSIC algorithm based on angle pre-estimation

ZHONG Linbo1, JI Jianhua1, WEN Xiaojun1, WANG Yanfen1, WU Shouhao2   

  1. 1.College of Information Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China
    2.Key Laboratory of Digital TV System, Research Institute of Tsinghua University in Shenzhen, Shenzhen, Guangdong 518060, China
  • Online:2015-01-15 Published:2015-01-12

摘要: 基于MUSIC算法的声源定位技术具有很高的估计精度及稳定性,算法的运算量主要集中在谱搜索部分。可以通过时延估计声源定位算法预先估计出方位角来缩小谱搜索空间,降低MUSIC算法的运算量。实验结果表明,该方法在保证定位精度的同时,可以大大地降低运算量,对工程应用具有一定的参考价值。

关键词: 声源定位, MUSIC算法, 角度预估计, 谱搜索

Abstract: Speech source localization technology based on MUSIC algorithm has high estimation accuracy and stability, and the computational complexity of the algorithm is mainly concentrated in the process of the spectrum searching. Search space of spectrum can be reduced by the estimation of azimuth through the delay estimation speech source localization algorithm. As a result, the amount of computation of the MUSIC algorithm can be reduced. Experimental results show that this method can drastically reduce the amount of computation, and ensure the accuracy of localization. In the same time, this method is valuable for engineering applications.

Key words: speech source localization, MUSIC algorithm, angle pre-estimation, spectrum searching