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Time-frequency representation of nonstationary signals: the IMFogram [article]

Philippe Barbe, Antonio Cicone, Wing Suet Li, Haomin Zhou
2021 arXiv   pre-print
We also introduce a new visualization of simultaneous local frequencies and amplitudes.  ...  Our approach acknowledges the influence of Ciprian Foias, who was passionate about pure, applied, and applications of mathematics.  ...  Figure 1 : 1 Time frequency representation of one chirp in time-varying noise. Left: spectrogram. Right: IMFogram.  ... 
arXiv:2011.14209v2 fatcat:rotvgmft7veazcd4rizlkdjhoq