Frequently programs for calculating the spectrum of a signal using the multi-taper method require the user to specify the time-bandwidth product.

What considerations must be made when selecting the time-bandwidth product? Would would be the effect on the resulting spectrum if the selected time-bandwidth product is too large or too small?

  • $\begingroup$ I think the idea is to go through several time-bandwidth products, not just a single one. Is there a paper you're using for reference? $\endgroup$ – Phonon Mar 5 '13 at 5:14
  • $\begingroup$ @Phonon, no... I've been trying to hunt one down. The way I understand it is that the time-bandwidth product dictates the number of tapers that can be used to accurately estimate the PSD, however, if too many tapers are used the PSD becomes over smoothed and inaccurate. $\endgroup$ – slayton Mar 5 '13 at 15:07

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