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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yansong Wang Lihua Chen Xuewen Chen |
| Copyright Year | 2009 |
| Description | Author affiliation: School of Automobile and Traffic Engineering Liaoning University of Technology Jinzhou, Shiyingjie, Liaoning, China (Xuewen Chen) || School of Automotive Engineering Shanghai University of Engineering Science Songjiang, Longteng Road, Shanghai, China (Yansong Wang; Lihua Chen) |
| Abstract | Based on the discrete wavelet transform (DWT), a new time-frequency algorithm for octave analysis (OA) of nonstationary sounds, so-called DWT-OA method, is proposed in this paper. A DWT-based multirate filter bank combined by a set of low-pass and high-pass filters was developed for octave analysis of some measured nonstationary interior vehicle noises. To establish the multirate filter bank, the Mallat algorithm was applied, and some wavelet functions in common use, such as the Daubechies, Coiflets, Symlets, etc., were studied and discussed. The Daubechies wavelet with the filter length of seventy was determined and applied to the vehicle noises. Verifications suggest that the newly presented DWT-OA algorithm is accurate and feasible for octave analysis of the nonstationary vehicle noises. It may be extended to dealing with other types of sound signals in engineering. |
| Starting Page | 1513 |
| Ending Page | 1517 |
| File Size | 732842 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781424447947 |
| DOI | 10.1109/ICAL.2009.5262738 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-08-05 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Algorithm design and analysis Time-frequency Algorithm Wavelet transform Low pass filters Time frequency analysis Wavelet analysis Discrete wavelet transforms Octave-band analysis Noise measurement Vehicles Acoustical engineering Acoustic noise Nonstationary interior vehicle noise Filter bank |
| Content Type | Text |
| Resource Type | Article |
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