Signal Processing Toolbox™

spectrum.burg - Burg spectrum

Syntax

Hs = spectrum.burg
Hs = spectrum.burg(order)

Description

Hs = spectrum.burg returns a default Burg spectrum object, Hs, that defines the parameters for the Burg parametric spectral estimation algorithm. The Burg algorithm estimates the spectral content by fitting an auto-regressive (AR) linear prediction filter model of a given order to the signal.

Hs = spectrum.burg(order) returns a spectrum object, Hs with the specified order. The default value for order is 4.

Note   See pburg for more information on the Burg algorithm.

Examples

Define a fourth order auto-regressive model and view its power spectral density using the Burg algorithm.

randn('state',1);
x=randn(100,1);
x=filter(1,[1 1/2 1/3 1/4 1/5],x);   % 4th order AR filter
Hs=spectrum.burg;                    % 4th order AR model
psd(Hs,x,'NFFT',512)

See Also

dspdata, spectrum, spectrum.cov, spectrum.mcov, spectrum.yulear, spectrum.periodogram, spectrum.welch, spectrum.mtm, spectrum.eigenvector, spectrum.music

spectrum

spectrum.cov