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I want to identify when data values ordered as a sine waveform.

For example in the picture

data that I want to identify for example

Until now I have worked with features like STD, RMS etc, on the data to identify waveforms. Now I am looking for a feature which will have such functionality although I am opened for any ideas to achieve such identification.

רועי ה
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1 Answers1

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You could, for example, compute the Fourier transform and see if it has a noticeable peak at one of the frequencies.

Alexey Frunze
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  • thanks for your answer. can fft feature extraction can do it? also I found more possible answers in this thread https://stackoverflow.com/questions/1141342/identifying-common-periodic-waveforms-square-sine-sawtooth – רועי ה Apr 22 '19 at 09:37