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Discussion Groups | Matlab DSP | Re: normalised cross correlation

Technical discussion about Matlab and issues related to Digital Signal Processing.

  

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normalised cross correlation - nmoff2003 - Jan 10 13:50:00 2004



hi

just wondering does anyone have any information on 'normalised cross
correlation' or any good websites etc.

thanks,
n





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Re: normalised cross correlation - Roger B. - Jan 11 23:36:00 2004



hi ,
Normalized cross correlation of two signals x1 and x2
at lag 'k' is the square of the modulus of their cross
correlation Rx1x2 at lag 'k' normalized by their
respective autocorrelation at lag zero (square root of
their variance).
NCC (k) = |Rx1x2(k)|^2 /Rx1(0).Rx2(0)

Cheers

Roger
--- nmoff2003 <> wrote:
> hi
>
> just wondering does anyone have any information on
> 'normalised cross
> correlation' or any good websites etc.
>
> thanks,
> n __________________________________



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