[SciPy-User] Why not filtfilt in decimate function?

Joscha Schmiedt joscha.schmiedt at googlemail.com
Thu Apr 14 06:20:22 EDT 2011


Dear list,

I just noticed that the decimate function from scipy.signal does not use
filtfilt to filter the signal but lfilter and thereby introduces nasty phase
shifts. Is there a reason why this is done?

Kind regards,
Joscha
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