Presentation 1999/1/21
The Method for Estimation of Focus Position Using MUSIC
Atsushi Okamoto, Hideo Shibayama, Shigeru Okada,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Ultrasonic diffraction method is the mthod of structure estimation which is aimed to diagnosis structural change of the part of disease disturbance and to clarify role of living tissue. We observe the diffracted waves by tissue at a focus position of the transducer in this method. Then, by observing at the position which slipped from a focus, estimated precision varies. It is important to find an accurate focus in order to estimate structure in high precision. As the method for estimating it, we suggest to use MUSIC which is a microphone array signal processing.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Concave transducer / Focus / Autocorrelation image / Microphone array / MUSIC
Paper # US98-85,EA98-111
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Committee EA
Conference Date 1999/1/21(1days)
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Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The Method for Estimation of Focus Position Using MUSIC
Sub Title (in English)
Keyword(1) Concave transducer
Keyword(2) Focus
Keyword(3) Autocorrelation image
Keyword(4) Microphone array
Keyword(5) MUSIC
1st Author's Name Atsushi Okamoto
1st Author's Affiliation Shibaura Institute of Technology()
2nd Author's Name Hideo Shibayama
2nd Author's Affiliation Shibaura Institute of Technology
3rd Author's Name Shigeru Okada
3rd Author's Affiliation Shibaura Institute of Technology
Date 1999/1/21
Paper # US98-85,EA98-111
Volume (vol) vol.98
Number (no) 531
Page pp.pp.-
#Pages 6
Date of Issue