摘要
本文介绍了汽车鸣笛声实时抓拍的理论研究和系统实现。该系统采用18个传声器组成的圆形阵列并基于波束形成算法和汽车鸣笛声的频谱特点,对鸣笛汽车进行声学定位。该系统可结合道路交通上的车牌抓拍系统实现汽车鸣笛声的实时抓拍。
This paper introduces the research and implementation of real-time car whistle sound location system.They system is based on Beamforming algorithms and the characteristic of vehicle horn spectrum using a circle array composed of 18 digital microphones.It can realize real-time capture of car whistle combined with vehicle license plate capture system on road traffic.
作者
袁芳
闫建伟
张勇
李屹超
王玉芬
YUAN Fang;YAN Jianwei;ZHANG Yong;LI Yichao;WANG Yufen(Hangzhou Aihua Instruments Co.,Ltd.,Hangzhou,311122,China;Hangzhou Aihua Instruments Co.,Ltd.,Taiyuan,030002,China)
出处
《电声技术》
2018年第11期13-15,21,共4页
Audio Engineering
关键词
笛声检测
波束形成
声源定位
whistle detection
beamforming
sound localization
