Phase in time between two signals in time domain

3 次查看（过去 30 天）

Giacomo Notaro 2019-10-1

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/482993-phase-in-time-between-two-signals-in-time-domain

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
显示无隐藏无

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.

Giacomo Notaro 2019-10-3