Examples See Also Power spectrum estimate using Yule-Walker AR method. It derives an all-pole model to represent the spectrum, so the correct choice of the model order p is crucial. If Fs is specified, the output frequency vector freq is scaled by this value. If the input signal is complex, freq ranges from 0 to Fs . In this case, the model order must be four or larger, because each real sinusoid is the sum of two complex exponentials.
Experience shows that taking a larger model order than the minimum seems to work better.
Plot the pole locations. Must have at least 1 output argument. Must have at least 2 input arguments. See Also lpc Linear prediction coefficients.