摘要
针对违章鸣笛车辆的锁定问题,本文提出了一种基于传声器阵列空间搜索法的三维空间声源定位算法。设计计算机仿真实验,分析并确定了阵列的传声器个数。通过广义互相关方法估计传声器阵列中任意两个传声器的相对时延,然后结合估计得到的时延,采用基于5传声器阵列的空间搜索法计算得到声源空间位置。为验证算法的可行性,实际构建三维空间的点声源定位系统,进行实车定位实验。实验结果表明提出的算法可以有效地定位汽车鸣笛声。
A 3D sound source localization algorithm based on microphone array space searching is proposed to supervise the illegal car horn. The number of microphone is determined by computer simulation. The first step is to estimate the time delay between arbitrary two microphones in the array using the generalized cross correlation（GCC） method. Then,with the estimated time delay, the space searching method based on 5-microphone array is used to localize the sound source.To verify the algorithm, a point source localization system in 3D space is established to locate the car horn. Experimental results show that the proposed algorithm can effectively locate the car horn.
作者
张焕强
黄时春
蒋伟康
ZHANG Huanqiang;HUANG Shichun;JIANG Weikang(Institute of Vibration Shock ＆ Noise,State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Shanghai 200240,China)
出处
《噪声与振动控制》
CSCD
2018年第3期10-14,共5页
Noise and Vibration Control
关键词
声学
声源定位
广义互相关
空间搜索
传声器阵列
acoustics
sound source localization
generalized cross correlation
space searching
microphone array
