Wavelets are a powerful mathematical tool used to multi-resolution time-frequency decomposition of signals, in order to analyze them in different scales and obtain different aspects of the information. Despite being a relatively new tool, wavelets have being applied in several areas of human knowledge, especially in signal processing, with emphasis in encoding and compression of image, video and audio. Based on a previous successful applications (FRAZIER, 1999) together a commitment to quality results, this paper evaluates the use of the Discrete Wavelet Transform (DWT) as an compression algorithm to reduce the amount of data collected in road load signals (load history) which are used by the durability engineering teams in the automotive industry. Preliminary results show that the using of DWT to compress the acquired signals reduces the computational effort, processing time, storage space and traffic on networks, improving the process of numerical determination of stress, deformation and fatigue life by CAE, still keeping the desired quality parameters and precision of the results.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    The Use of Discrete Wavelet Transform in Road Loads Signals Compression


    Additional title:

    Sae Technical Papers



    Conference:

    SAE Brasil 2009 Congress and Exhibit ; 2009



    Publication date :

    2009-10-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    THE USE OF DISCRETE WAVELET TRANSFORM IN ROAD LOADS SIGNALS COMPRESSION

    Andrade, G.S. / Schnitman, L. / Duarte, A.A. et al. | British Library Conference Proceedings | 2009


    Hybrid discrete cosine transform-discrete wavelet transform for progressive image compression

    Boukaache, A. / Doghmane, N. | British Library Online Contents | 2012


    DATA COMPRESSION OF LARGE-SCALE FLOW COMPUTATION USING DISCRETE WAVELET TRANSFORM

    Sakai, R. / Sasaki, D. / Nakahashi, K. et al. | British Library Conference Proceedings | 2010


    Data Compression of Large-Scale Flow Computation Using Discrete Wavelet Transform

    Sakai, Ryotaro / Sasaki, Daisuke / Nakahashi, Kazuhiro | AIAA | 2010


    Wavelet compression through wavelet Stieltjes transform [2034-43]

    Chou, M. / Lin, E. / SPIE | British Library Conference Proceedings | 1993