[Eeglablist] Peak shift problem

[linhaisheng318]

Hello, I am now using ICA to identify the components of mixed spectra. But one sharp peak of some mixed spectra is a few wavenumber shifts of that of ther other mixed spectra. So, when ICA is applied to identify the components, there would be two ICs who are similar but only a few wavenumber shifted. I do not how to deal with this situation. I have used some preprocessing methods to deal with the shift problem. But it still did not work. I wonder whether there are some efficient methods,  no matter preprocessing, change of ICA algorithm and so on, that can solve this problem. Thank you very much for your help. Best wishes! LIN      
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