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Application of analytic wavelet transform to transient signal analyses.

Authors
Zhu-X; Kim-J
Source
Noise and Vibration Conference and Exhibition, May 15-17, 2007, St. Charles, Illinois. Warrendale: SAE International, 2007 May; :2007-01-2321
NIOSHTIC No.
20043809
Abstract
The analytic wavelet transform (AWT) is a wavelet transform that works much like a transient Fourier transform. Therefore the AWT enables utilizing advantages of both the wavelet transform and Fourier transform. A special form of AWT developed for transient vibration and acoustics signal analyses is applied to various engineering signals in this paper. Application examples include a general time-frequency (T-F) analysis, analysis of exposures to impulsive vibrations and noises, and estimation of reverberation times. Some new definitions such as the T-F noise reduction and frequency weighted time history are defined by taking the advantage of unique capabilities of the AWT. Possible automotive applications of these new concepts are briefly discussed.
Keywords
Work-environment; Noise; Noise-exposure; Noise-sources; Exposure-levels; Risk-factors; Noise-induced-hearing-loss; Noise-levels; Auditory-system; Sound; Workers; Impulse-noise; Vibration; Engineering; Analytical-processes; Automotive-industry
Contact
Jay H. Kim, Parker-Haniffin Corp., 6035 Parkland Blvd., Cleveland, OH 44124-4141
Publication Date
20070515
Document Type
Conference/Symposia Proceedings
Email Address
jay.kim@uc.edu
Funding Type
Grant
Fiscal Year
2007
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R21-OH-008510
Source Name
Noise and Vibration Conference and Exhibition, May 15-17, 2007, St. Charles, Illinois
State
OH
Performing Organization
University of Cincinnati
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