Synchrosqueezing-Based Recovery of Instantaneous Frequency from Nonuniform Samples

  title={Synchrosqueezing-Based Recovery of Instantaneous Frequency from Nonuniform Samples},
  author={Gaurav Thakur and Hau-Tieng Wu},
  journal={SIAM J. Math. Analysis},
We propose a new approach for studying the notion of the instantaneous frequency of a signal. We build on ideas from the Synchrosqueezing theory of Daubechies, Lu, andWu [Appl. Comput. Harmonic Anal., 30 (2010), pp. 243–261] and consider a variant of Synchrosqueezing, based on the short-time Fourier transform, to precisely define the instantaneous frequencies of a multicomponent AM-FM signal. We describe an algorithm to recover these instantaneous frequencies from the uniform or nonuniform… CONTINUE READING
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