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Article Dans Une Revue IEEE Transactions on Signal Processing Année : 2015

Second-order synchrosqueezing transform or invertible reassignment? Towards ideal time-frequency representations

Résumé

This paper considers the analysis of multicomponent signals, defined as superpositions of real or complex modulated waves. It introduces two new post-transformations for the short-time Fourier transform, that achieve a compact time-frequency representation while allowing for the separation and the reconstruction of the modes. These two new transformations thus provide the benefits of both the synchrosqueezing transform (which allows for reconstruction) and the reassignment method (which achieves a compact time-frequency representation). Numerical experiments on real and synthetic signals demonstrate the efficiency of these new transformations, and illustrate their differences.
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Dates et versions

hal-00994883 , version 1 (22-05-2014)

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Thomas Oberlin, Sylvain Meignen, Valérie Perrier. Second-order synchrosqueezing transform or invertible reassignment? Towards ideal time-frequency representations. IEEE Transactions on Signal Processing, 2015, 63 (5), pp.1335-1344. ⟨10.1109/TSP.2015.2391077⟩. ⟨hal-00994883⟩
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