Title :
Approximation of two-dimensional digital filters using first and second-order information
Author :
Zilouchian, A. ; Gautam, A.
Author_Institution :
Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA
Abstract :
The autocorrelation and impulse sequences of a discrete system are utilized to develop a new technique for the approximation of 2-D separable-in-denominator digital filters. It is shown that the proposed scheme guarantees the stability of the approximated filter. A numerical example is presented to demonstrate the usefulness of the proposed approach
Keywords :
approximation theory; correlation theory; filtering and prediction theory; matrix algebra; stability; two-dimensional digital filters; 2D filters; approximated filter; autocorrelation; discrete system; impulse sequences; modal analysis; second-order information; separable-in-denominator; stability; two-dimensional digital filters; Autocorrelation; Circuits; Digital filters; Filtering theory; Information filtering; Information filters; Least squares approximation; Stability; Transfer functions; Two dimensional displays;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176029
