Improving the readability of time-frequency and time-scale representations by the reassignment method

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Authors F. Auger, P. Flandrin
Journal/Conference Name IEEE Transactions on Signal Processing
Paper Category
Paper Abstract In this paper, the use of the reassignment method, first applied by Kodera, Gendrin, and de Villedary (1976) 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. We first propose a new formulation of this method, followed by a thorough theoretical study of its characteristics. Its practical use for a large variety of known time-frequency and time-scale distributions is then addressed. Finally, some experimental results are reported to demonstrate the performance of this method. >
Date of publication 1995
Code Programming Language Python
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