qWith the time-lag correlation method, the bandwidth of the power spectrum is determined by the
maximum time lag (L) used in the calculation:
q Df = 1 cycle/(2LDt).
qNumber of frequency band = (Nyquist frequency – 0) / Df
q = (2 Dt)-1 / (2L Dt)-1 = L
qNumber of degrees of freedom = N/(number of bands)
q = N/L