Phase in time between two signals in time domain

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Giacomo Notaro
Giacomo Notaro 2019-10-1
评论： Giacomo Notaro 2019-10-3
Hi all!
I have two signals in time domain, one is the input and the other is the output.
I compute the transfer function with "tfestimate" command and I use the command "angle" to get the phase in frequency domain.
Since the phase must be computed in a transitory I need the behaviour of that phase in time, because the frequency is not constant so I can't obtain the corresponding phase using the frequency domain.
What do you suggest to obtain the phase time behaviour between those two signals?
Thank you in advance
  2 个评论
Valentin Steininger
Valentin Steininger 2019-10-1
Hi,
You can use xcorr to compute the cross-correlation between the input and the output. When plotting the correlation over lags you can see the time-shift between both signals.

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