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arXiv · 1705.05874

Time-frequency or time-scale representation fission and fusion rules

Coen Jonker·Arryon D. Tijsma·Ronald A. J. van Elburg
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Abstract

Time-frequency representations are important for the analysis of time series. We have developed an online time-series analysis system and equipped it to reliably handle re-alignment in the time-frequency plane. The system can deal with issues like invalid regions in time-frequency representations and discontinuities in data transmissions, making it suitable for on-line processing in real-world situations. In retrospect the whole problem can be considered to be a generalization of ideas present in overlap-and-add filtering, but then for time-frequency representations and including the calculation of non-causal features. Here we present our design for time-frequency representation fission and fusion rules. We present these rules in the context of two typical use cases, which facilitate understanding of the underlying choices.

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Coen Jonker, Arryon D. Tijsma, Ronald A. J. van Elburg. 2017-05-16. Time-frequency or time-scale representation fission and fusion rules. https://arxiv.org/abs/1705.05874

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