Title :
Modeling unequally spaced 2-D discrete signals by rational functions
Author :
Diamessis, John E. ; Potamianos, Gerasimos G.
Author_Institution :
Nat. Tech. Univ., Athens, Greece
Abstract :
A new two-dimensional (2-D) interpolating continued fraction is described. This continued fraction is used to model 2-D discrete signals by bivariate rational functions. An algorithm for the recursive determination of the model parameters is presented. Some attractive characteristics of the proposed method are its applicability to unequally spaced data and the permanence of the solution. The method is applicable to rectangular arrays of data and can be used in a variety of applications, including the design of 2-D infinite-impulse-response (IIR) digital filters. Generalization and other areas of application are mentioned
Keywords :
filtering and prediction theory; interpolation; signal processing; two-dimensional digital filters; 2D IIR filter design; 2D discrete signal modelling; 2D interpolating continued fraction; bivariate rational functions; digital filters; infinite-impulse-response; model parameters; rectangular data arrays; recursive determination; unequally spaced data; Computational modeling; Digital filters; Finite impulse response filter; Frequency; IIR filters; Interpolation; Multidimensional systems; Polynomials; Sampling methods; Signal reconstruction;
Conference_Titel :
Circuits and Systems, 1989., IEEE International Symposium on
Conference_Location :
Portland, OR
DOI :
10.1109/ISCAS.1989.100644
