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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Konferencja
Polish-German Workshop on Dynamical Problems in Mechanical Systems (9 ; 4-10.09.2005 ; Paszkówka, Poland)
Języki publikacji
Abstrakty
This contribution deals with the priciples of linear time-frequency analysis. Two commonly used methods, the short-time Fourier transform and the wavelet transform, based on a harmonic wavelet, are described. The short-time Fourier transform is characterised by a uniform time-frequency resolution, whereas wavelet transforms exhibit non-uniform resolution in the time-frequency domain. The effect of uniform and non-uniform resolution respectively on the time-frequency analysis is shown by means of artifical test signals. A well adapted short-time Fourier transform is well suited for vibration analysis. This is illustrated by two applications in mechanical and medical engineering.
Czasopismo
Rocznik
Tom
Strony
61--72
Opis fizyczny
Bibliogr. 3 poz., wykr.
Twórcy
autor
autor
- Institute of Dynamics and Vibrations. University of Hannover, reicke@ids.uni-hannover.de
Bibliografia
- Qian, S., 2002, Introduction to time-frequency and wavelet transforms, Prentice Hall, Upper Saddle River, 47-49.
- Mertins, A., 1999, Signal analysis: wavelets, filter banks, time-frequency transforms and applications, John Wiley & Sons, Chichester, 206-212.
- Newland, D. E., 1993, An introduction to random vibrations, spectral and wavelet analysis, Longman Scientific & Technical, Essex, 359-369.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BWA0-0018-0010