Publication detail
Page Transform as Power Tool to Analyses to Analyses of Railway Structures
SMUTNÝ, J.
Czech title
Page Transform as Power Tool to Analyses to Analyses of Railway Structures
English title
Page Transform as Power Tool to Analyses to Analyses of Railway Structures
Type
conference paper
Language
en
Original abstract
Analysis of complex vibrations normally takes the form of presentation of components frequencies related to their amplitudes, or a presentation of how the amplitude of specific signal varies with time. For a full understanding of vibrations, generated by a passing train (acts by generally non-stationary signals), is needed a simultaneous three-dimensionally (or contour) presentation, showing the occurrence of different frequencies related to time. Page distribution presents a suitable transform method that gives perfect distinction in time and frequency areas. The Page transform which belongs into the quadratic time-frequency distributions covariant by shift in time and in frequency, offers a wide set of powerfull tools to analyse non-stationary signals. The basic idea is to devise a joint function of time and frequency that describes the energy density or intenzity of a signal simultanneously in time and in frequency.
Czech abstract
Analysis of complex vibrations normally takes the form of presentation of components frequencies related to their amplitudes, or a presentation of how the amplitude of specific signal varies with time. For a full understanding of vibrations, generated by a passing train (acts by generally non-stationary signals), is needed a simultaneous three-dimensionally (or contour) presentation, showing the occurrence of different frequencies related to time. Page distribution presents a suitable transform method that gives perfect distinction in time and frequency areas. The Page transform which belongs into the quadratic time-frequency distributions covariant by shift in time and in frequency, offers a wide set of powerfull tools to analyse non-stationary signals. The basic idea is to devise a joint function of time and frequency that describes the energy density or intenzity of a signal simultanneously in time and in frequency.
English abstract
Analysis of complex vibrations normally takes the form of presentation of components frequencies related to their amplitudes, or a presentation of how the amplitude of specific signal varies with time. For a full understanding of vibrations, generated by a passing train (acts by generally non-stationary signals), is needed a simultaneous three-dimensionally (or contour) presentation, showing the occurrence of different frequencies related to time. Page distribution presents a suitable transform method that gives perfect distinction in time and frequency areas. The Page transform which belongs into the quadratic time-frequency distributions covariant by shift in time and in frequency, offers a wide set of powerfull tools to analyse non-stationary signals. The basic idea is to devise a joint function of time and frequency that describes the energy density or intenzity of a signal simultanneously in time and in frequency.
Keywords in English
Time-frequency representation, Wigner-Ville transform, Page transform
Released
25.06.2001
Location
University of Zilina, Slovak Republic
ISBN
80-7100-852-4
Book
Transcom 2001, 4-th European Conference of Young Research and Science Workers in Transport and Telecomunications
Pages count
4
BIBTEX
@inproceedings{BUT3420,
author="Jaroslav {Smutný},
title="Page Transform as Power Tool to Analyses to Analyses of Railway Structures",
booktitle="Transcom 2001, 4-th European Conference of Young Research and Science Workers in Transport and Telecomunications",
year="2001",
month="June",
address="University of Zilina, Slovak Republic",
isbn="80-7100-852-4"
}