Title :
The modified Wigner distribution with application to acoustic well logging
Author :
Day, Dwight D. ; Yarlagadda, Rao
Author_Institution :
Boeing Airplane Co., Wichita, KS, USA
Abstract :
The authors present robust techniques for estimating the arrival of C and S waves from an acoustic well log trace. The first technique, based on the Allan variance, will detect the arrival of the compressional wave. The second technique is based on a modified version of the Wigner distribution, which allows for more efficient computation. This modified Wigner distribution (MWD) is applied to the wavetrain of the acoustic well log, and the S wave arrival is identified from this analysis
Keywords :
acoustic signal processing; geophysical prospecting; geophysical techniques; seismology; Allan variance; C waves; S waves; acoustic well logging; borehole method; compressional wave; modified Wigner distribution; prospecting technique; robust techniques; seismology; Acoustic applications; Acoustic measurements; Acoustic waves; Airplanes; Equations; Filters; Frequency; Time measurement; Transfer functions; Well logging;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.197210
