DocumentCode
2754079
Title
Quantitative time resolved acoustic microscopy using wavelet analysis
Author
Schlegel, J.C. ; Schmitt, R.M.
Volume
3
fYear
1994
fDate
Oct. 31 1994-Nov. 3 1994
Firstpage
1393
Abstract
Quantitative acoustic microscopy can reveal geometric and elastic properties of solid targets as well as of living cell structures in high resolution. One of the major problems is the low signal to noise ratio (SNR) because of very high attenuation and weak reflections from the surfaces. Digitization of Ascans further allows only low pulse repetition frequency (PRF) so that necessary averaging leads to unacceptable acquisition time. Wavelet analysis was introduced to overcome this problem. It will be shown that it is possible to improve SNR by artificial limitation of bandwidth without significant worsening of time resolution
Keywords
acoustic microscopy; ultrasonic applications; wavelet transforms; A-scans; bandwidth; digitization; elastic properties; geometric properties; high attenuation; living cell structures; low pulse repetition frequency; quantitative time resolved acoustic microscopy; signal to noise ratio; solid targets; time resolution; wavelet analysis; weak reflections; Acoustic microscopy; Wavelet transforms;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location
Cannes, France
Print_ISBN
0-7803-2012-3
Type
conf
DOI
10.1109/ULTSYM.1994.401851
Filename
401851
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