Title :
2D maximum likelihood spectrum estimation using orthogonal 2D lattice filters
Author_Institution :
Dept. of Electr. Eng., Istanbul Tech. Univ., Turkey
fDate :
7/18/1996 12:00:00 AM
Abstract :
A new method to obtain the 2D ML spectrum estimation using recently developed orthogonal 2D lattice filters for AR modelling is reported. It is shown that the reciprocal of the 2D ML estimate is equal to the average of the reciprocals of the AR spectra obtained from the unended orthogonal forward or backward prediction error filters in the 2D AR lattice structure
Keywords :
autoregressive processes; lattice filters; maximum likelihood estimation; spectral analysis; two-dimensional digital filters; 2D maximum likelihood spectrum estimation; AR model; backward prediction error; forward prediction error; orthogonal 2D lattice filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960920
