Correlate Signals with different time points

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Sam Hurrell
Sam Hurrell 2022-9-27
编辑： Chunru 2022-9-30
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?
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Mathieu NOE
Mathieu NOE 2022-9-29
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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回答（1 个）

Chunru
Chunru 2022-9-30
编辑：Chunru 2022-9-30
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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