i have 3 cross correlation data between cross section 1-2 , 2-3 and 1-3..graph 2 make more noise than graph 1 and 3..and i know that the maximum lag of the graphs show that the most similarities between the cross correlation graphs.. can someone explain to me more details about the graphs beside the similarities of cross correlation graph?
Hello,
The cross correlation graphs seems very similar.To clearly analyze the main différences between them, I suggest you to do the following analysis :
1) do a filter-bank analysis of the 3 signals (with lets' say 10 band-pass filters covering the whole bandwidth)
2)for ech band, compute de mean-power of each filtered sequence and compute the cross-correlations 1-2, 2-3 and 1-3 bteween the filtered sequences
Then you can get for each band the lag associated with the maximum of correlation together with the corresponding power. This will bring you a better view of the correlation properties between these signals.
Tell me if this provides you a solution to your problem.
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