# David Vakman

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- David Vakman
- IEEE Trans. Signal Processing
- 1996

- Leon Cohen, Patrick J. Loughlin, David Vakman
- Signal Processing
- 1999

We point out that the conventional de"nition of instantaneous amplitude and frequency, namely as the magnitude and derivative of the phase, respectively, of a complex representation of the signal, sometimes contains an ambiguity, even for a unique complex representation (e.g., the analytic signal). There are at least two choices for resolving this ambiguity… (More)

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