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Extracting Phases from Aperiodic Signals

Alexander Kraskov·Thomas Kreuz·Ralph G. Andrzejak·Harald Stoegbauer·Walter Nadler·Peter Grassberger
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Abstract

We demonstrate by means of a simple example that the arbitrariness of defining a phase from an aperiodic signal is not just an academic problem, but is more serious and fundamental. Decomposition of the signal into components with positive phase velocities is proposed as an old solution to this new problem.

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Alexander Kraskov, Thomas Kreuz, Ralph G. Andrzejak, Harald Stoegbauer, Walter Nadler, Peter Grassberger. 2004-09-15. Extracting Phases from Aperiodic Signals. https://arxiv.org/abs/cond-mat/0409382

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