Hi Brainstorm team,
I am calculating the PSD on portions of signals having different lengths and I am using the pwelch method. I am setting window length at 10s and my signals can last from 0.5s to 2s. Since the resolution is R = Fs/N (N is the length of the signal observation), I am having different frequency resolutions according to the length of the signal, but I need the same resolution across all the signals! How is Brainstorm computing the PSD through the pwelch method? Is there a way to implement a zero-padding on the time domain so that for shorter signals I don't have lower frequency resolutions?