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measure the difference between two signal ?

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cob 2015-7-16

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评论： cob 2015-7-16

采纳的回答： Honglei Chen

Hi , i have two signals the first one is the reference , and the second is recorded , im trying to measure the similarities between using the xcorr function , the issue is that timing between the peeks of both signals is different , but if look on them in the time domain , its possible to find the similarities between :

so i tried to use the xcorr function , and this is the result i'v got :

are there any other matlab functions differ than XCORR ?

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Honglei Chen 2015-7-16

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For this kind of task you may want to look into dynamic time warping

https://en.wikipedia.org/wiki/Dynamic_time_warping

There are several MATLAB implementation online.

HTH

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cob 2015-7-16

Ok , i will check this, Thank.

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