Traffic monitoring using digital sound field mapping

被引：24

作者：

Chen, SP ^{[1
]}

Sun, ZP

Bridge, B

机构：

[1] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA

[2] Queens Univ Belfast, Dept Elect & Elect Engn, Belfast BT9 5AH, Antrim, North Ireland

[3] S Bank Univ, Sch Elect Elect & Informat Engn, London SE1 0AA, England

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2001年 / 50卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

digital signal processing; traffic sensing; sound;

D O I：

10.1109/25.966587

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A new traffic sensing technique is described that utilizes a microphone array to detect the sound waves generated by the road vehicles. The detected signals are then digitized and processed by an on-site computer using, a correlation based algorithm, which extracts key data reflecting the road traffic conditions, e.g., the speed and density of vehicles on the road, automatically on site. In comparison with existing traffic sensors, the proposed system offers lower installation and maintenance costs and is less intrusive to the surrounding built environment. The results of theoretical analysis, computer simulation, and preliminary experimental results are presented.

引用

页码：1582 / 1589

页数：8