摘要
提出了一种基于立体声信号的声源定位算法。算法主要分为两个步骤:先进行声达时间差估计,并从中获取传声器阵列中阵元间的声延迟;再利用获取的声达时间差,结合已知的传声器阵列的空间位置和声速进一步定出具体声源的位置。实践结果表明,该算法是一种准确度高、稳定性好的声源定位方法,并且更加有利于实时声信号的处理。
A three-dimension acoustic signals based acoustic localization algorithm is proposed. The algorithm is mainly divided into two steps： First estimating the time difference of the sound to reach, and acquiring the data about the delay of sound from the sound sensors; then making use of the time difference which have been acquired, the space location of the sound sensors and the velocity of sound to ascertain acoustic location. The results show that it is an accurate and stable acoustic localization method, and it is more useful in processing real-time sound signals.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第23期5797-5799,共3页
Computer Engineering and Design
基金
湖南省自然科学基金项目(06JJ20075)
关键词
声源定位
三维
时间差矢量
声发射
算法研究
acoustic localization
three-dimension
time difference vector
acoustic emission
algorithm research
