User`s guide
Yule-Walker Method
5-550
Dialog Box
Inherit estimation order from input dimensions
When selected, sets the estimation order to one less than the length of the 
input vector.
Estimation order
The order of the AR model. This parameter is enabled when 
Inherit 
estimation order from input dimensions
 is not selected.
Inherit FFT length from estimation order
When selected, uses the estimation order to determine the number of data 
points, N
fft
, on which to perform the FFT. Sets N
fft
 equal to (estimation 
order + 1). Note that N
fft 
must be a power of 2, so (estimation order + 1) 
must be a power of 2.
FFT length
The number of data points, N
fft
, on which to perform the FFT. If N
fft
exceeds the input frame size, the frame is zero-padded as needed. This 
parameter is enabled when 
Inherit FFT length from estimation order is 
not selected.
References Kay, S. M. Modern Spectral Estimation: Theory and Application. Englewood 
Cliffs, NJ: Prentice-Hall, 1988.
Marple, S. L., Jr., Digital Spectral Analysis with Applications. Englewood 
Cliffs, NJ: Prentice-Hall, 1987.
Supported 
Data Types
Double-precision floating point 










