Hi Jim, > That's the sort of strategy I'm looking at.. find a set of samples where > the transient occurs, zero pad it out (so that when I do peak picking > later, I've effectively got interpolation), then run the correlation
You find it using cross-correlation, and once found, you have a fair idea for the next round where it is so a shorter cross-correlation can be used if processing is relevat. > ifft(fft(a).*conj(fft(b))) in matlab After that, search through for the highest amplitude, which is a linear search. The trick of using a reference is that the conj and fft can be done as common processing and then only the fft, multiply and ifft needs to be done for each other channel. This removes 1/3 of the needed FFTs. Cheers, Magnus _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.