Presentation 1994/9/21
A new ultrasonic pulse Doppler-based method for measuring higher velocity
Makoto Kondo, Hiroshi Kanai, Noriyoshi Chuubachi,
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Abstract(in English) In the standard pulse Doppler method,target velocity is obtained from the Doppler-shift only for the center frequency of the ultrasonic transducer.In this standard method,therefore,the limit of the measurable velocity is not neglected.In this paper,we propose a new method for measuring velocity component higher than the limit of the standard method by obtaining the Doppler-shift from the phase characteristics not for the center frequency but for the frequency band around the center frequency of the ultrasonic transducer.After describing the principle of the method, the principle is comfirmed by the simulation experiments and the experiments using a water tank.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ultrasonic pulse Doppler method / Velocity measurement / Phase spectrum / Aliasing
Paper # US94-46
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Committee US
Conference Date 1994/9/21(1days)
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Registration To Ultrasonics (US)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A new ultrasonic pulse Doppler-based method for measuring higher velocity
Sub Title (in English)
Keyword(1) Ultrasonic pulse Doppler method
Keyword(2) Velocity measurement
Keyword(3) Phase spectrum
Keyword(4) Aliasing
1st Author's Name Makoto Kondo
1st Author's Affiliation Faculty of Engineering,Tohoku University()
2nd Author's Name Hiroshi Kanai
2nd Author's Affiliation Faculty of Engineering,Tohoku University
3rd Author's Name Noriyoshi Chuubachi
3rd Author's Affiliation Faculty of Engineering,Tohoku University
Date 1994/9/21
Paper # US94-46
Volume (vol) vol.94
Number (no) 249
Page pp.pp.-
#Pages 8
Date of Issue