Scilab Function
Last update : 1/11/2005
akfrader - Autocorrelation estimation by the method
of Rader
Calling Sequence
-
y = akfrader(x,M)
Parameters
-
x
: row vector representing a signal
-
M
: Length of computed autocorrelation function
-
y
: The estimated autocorrelation [Rxx(0), Rxx(1), ... ,
Rxx(M-1)]
Description
-
The method of Rader is based upon a clever way of FFT
transformations to realize the convolutions.
-
Quite fast and precise !
Examples
x=rand(1,5000,'normal');
y=akfrader(x,64);
k=0:1:63;
plot2d2(k,y);
See Also
burg
,
welch
,
Authors
-
Dr. Andreas Geissler geisslea@web.de
Bibliography
Kammeyer, Karl Dirk, "DIGITALE SIGNALVERARBEITUNG : Filterung und
Spektralanalyse" Teubner-Verlag 1989, Teubner-Studienbücher:
Elektrotechnik , ISBN 3-519-06122-8