Paper Abstract and Keywords |
Presentation |
2011-11-24 16:40
Near Real Time Observation System for Vortex Wind Field Velocity Tomography Junichi Tabeta, Naoki Ogawa, Takuya Hirasawa, Haiyue Li, Akira Yamada (Tokyo Univ of A&T) US2011-76 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Based on measurements of ultrasonic propagation time of ultrasonic sensors installed on both sides of the multi-channel monitoring area, sound tomography imaging system for the quasi real time wind flow monitoring was investigated. In order to realize the simultaneous transmittance to reduce the sound wave propagation time along the sound propagation paths, Kasami sequence modulated signals were used. In the usual analysis, however, to calculate the propagation time difference, number of measurement data becomes very large and takes long time. For the resolution of the problem, GPGPU (General-purpose Computing on Graphics Processing Unit) was introduced and its performance for the vortex wind velocity reconstruction was investigated to verify the real time measurement capability of the proposed system. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Acoustic travel time tomography / Vortex airflow imaging / Ultrasound fluid velocity measurement / Monitoring of strong wind gust / Multichannel array signal processing / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 311, US2011-76, pp. 59-63, Nov. 2011. |
Paper # |
US2011-76 |
Date of Issue |
2011-11-17 (US) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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US2011-76 |
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