Improving the readability of time-frequency and time-scale representations by the reassignment method
نویسندگان
چکیده
منابع مشابه
Improving the readability of time-frequency and time-scale representations by the reassignment method
Abstruct-In this paper, the use of the reassignment method, first applied 15 years ago by Kodera, Gendrin, and de Villedary to the spectrogram, is generalized to any bilinear time-frequency or time-scale distribution. This method creates a modified version of a representation by moving its values away from where they are computed, so as to produce a better localization of the signal components....
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A simple but efficient method to improve readability of discrete pseudo time-frequency representations (TFRs) of nonstationary signals by the reassignment of the representations in discrete frequency dimension is presented. The method does not rely on the nonzero time derivative of the window function employed in the estimation of pseudo TFR. This property of the reassignment method is advantag...
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Cohen's class time-frequency distributions (CTFDs) have significant potential for the analysis of non-stationary signals, even if the poor readability of their representations makes visual interpretations difficult. To concentrate signal components, Auger and Flandrin recently generalized the reassignment method (first applied to the spectrogram in the 1970s) to any bilinear representations. Un...
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ژورنال
عنوان ژورنال: IEEE Transactions on Signal Processing
سال: 1995
ISSN: 1053-587X
DOI: 10.1109/78.382394