In biomedical field, signals such as ECG is periodic(because of the repeated PQRST waveform). But what kind of classification algorithm is used to classify a signal as periodic?
Thanks in advance
Article A machine-learning phase classification scheme for anomaly d...
https://pdfs.semanticscholar.org/af4b/18f64e8394e723d83a952d852e3d8f213868.pdf
Shun Kent Chook
Hi,
in order to figure out whether a signal is periodical, you could use the analysis of autocorrelation functions (ACF-plots) from time series analysis (see e.g. here https://otexts.com/fpp2/autocorrelation.html)
In order to classifiy different signals acording to their periodicity, I would map the signals into the frequency domain using FFT (Fast-Fourier-Transformation) and would use a conventional classification algorithm on their frequencies.
Hope that helps a bit.
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