Title :
Wigner distribution applied for scattering characterization of defects in concrete
Author :
Kitahara, M. ; Musha, T. ; Kawaura, J.
Author_Institution :
Fac. of Marine Sci. & Technol., Tokai Univ., Shizuoka, Japan
Abstract :
The Wigner distribution is briefly introduced, and its applicability to defect characterization is discussed. The high resolution of the Wigner distribution in the time-frequency domain is shown to be useful for characterizing the waveforms from defects in concrete. Forward-scattered ultrasonic waves are employed as the signal for the characterization of defects
Keywords :
concrete; flaw detection; ultrasonic materials testing; Wigner distribution; concrete; defect characterization; forward scattered ultrasonic waves; scattering characterization; time-frequency domain; Acoustic scattering; Bridges; Buildings; Concrete; Fourier transforms; Marine technology; Signal resolution; Sonar equipment; Spectrogram; Time frequency analysis;
Conference_Titel :
Ultrasonics Symposium, 1990. Proceedings., IEEE 1990
Conference_Location :
Honolulu, HI
DOI :
10.1109/ULTSYM.1990.171534
