Bandwidth of a signal.
Computes the bandwidth of the given data which can be windowed or not. The bandwidth corresponds to the level where the power of the spectrum is half its maximum value. It is determined as the level of 1/sqrt(2) times the maximum Fourier amplitude.
If data are windowed the bandwidth of each window is returned.
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Returns: | bwith[, dbwithd] - Bandwidth, Time derivative of predominant period (windowed only). |