2D ARMA parameter identification using a hybrid lattice design

A new hybrid lattice structure to identify the parameters of an unknown 2D ARMA (M, N) system, where M and N can take arbitrary values different from each other, is presented. The proposed hybrid analysis model incorporates both two-channel and single channel lattice stages in an interleaved manner. The two-channel lattice part is based on the formerly proposed 2D ARMA lattice modeling approach where only the case M=N was covered. A new formulation to calculate the ARMA parameters has been derived, taking the estimated parameter, b/sub 0/, into consideration.