Real-time monitoring system of vortex wind field using coded acoustic wave signals between parallel array elements

被引：14

作者：

Li, Haiyue ^{[1
]}

Terada, Hiroki ^{[1
]}

Yamada, Akira ^{[1
]}

机构：

[1] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Koganei, Tokyo 1848588, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2014年 / 53卷 / 07期

关键词：

TOMOGRAPHY;

D O I：

10.7567/JJAP.53.07KC18

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An acoustic travel-time tomography system for the monitoring of the vortex wind flow velocity profile has been studied, where multichannel parallel acoustic transmitter/receiver pairs are placed along opposite sides of the monitoring region. For real-time high-speed collection and computation of data, a simultaneous transmission technique of using a pseudo-noise code-modulation signal was adopted, as well as a graphics processing unit with the use of an 8-channel indoor test system, bidirectional travel time lag data along 34 propagation paths were processed in parallel. By this means, vortex wind fields, including their 2D center position, were successfully monitored at a frame rate of approximately 1 s. Real-time tracking capability for a moving vortex wind field was examined. The results showed the feasibility of the method for the monitoring of outdoor moving vortex wind fields. (C) 2014 The Japan Society of Applied Physics

引用

页数：7

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