Correlate Signals with different time points

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Sam Hurrell
Sam Hurrell on 27 Sep 2022
Edited: Chunru on 30 Sep 2022
I have two datasets (simulation and experimental) with normalised amplitudes, and I need to find a correlation coefficient for the two outputs. The problem is that these two signals have their values taken at different timesteps to each other, so how can I correlate them? Additionally how could I correlate them if the two datasets were at different lengths?
  1 Comment
Mathieu NOE
Mathieu NOE on 29 Sep 2022
hello
is the delta in time steps constant or not ?
have you tried to use xcorr to measure (and correct) for delay ?

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Answers (1)

Chunru
Chunru on 30 Sep 2022
Edited: Chunru on 30 Sep 2022
You can resample the data into sime sampling time:
doc resample
doc retime
doc interp1
After both signals are sampled in the same time grid:
doc crosscorr
doc xcorr

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