Nov. 26, 2015
11:38 a.m.
Manolo,
Is there any way to check for cycles in this situation?
Fast fourier transform (fft)?
+1 For using a discrete Fourier transform, as implemented by numpy.fft.fft. You mentioned that you sample at points which do not correspond with the period of the signal; this introduces a slight complexity in how the Fourier transform reflects information about the original signal. I attach two documents to this email with details about those (and other) complexities. There is also much information on this topic online and in signal processing books.