基于T型麦克风阵列的近场三维声源定位

基于麦克风阵列的声源定位技术在视频会议、声音检测、助听器、车载免提电话等领域有重要的应用价值,成为当前语音信号处理的热点。本课题根据阵列信号处理中的MUSIC算法为原型,根据语音信号的特点,将其进行改进,改进后的算法可以应用于近场的声源定位,并介绍了一种基于T型阵的三维定位方法,提高了定位精度且降低了计算复杂度。

Near-field Speech Source Three-dimension Localization Based on T-shaped Microphone Array

Microphone array can be employed for acoustic localization and speech enhancement,and used in videoconference,voice check,hearing aid,hand-free phone in car and so on.So,the research about microphone array is becoming a hotspot in the field of array sound signal processing now days.This thesis is focused on one of them-an arithmetic so-called MUSIC,which is revised according to the characteristics of speech signal as the input of the microphone array-The revised arithmetic can be applied on location the speech source in the near-field.Meanwhile,a new array signal processing algorithm,which is based on the T-shaped array near-field speech source three-dimension localization,is introduced in details.It can enhance the precision of the location and reduce the complexity of the arithmetic in the same time.