Title :
Design of FIR predictors as a tapped cascaded interconnection of subfilters
Author_Institution :
Dept. of Inf. Technol., Tampere Univ. of Technol., Tampere, Finland
Abstract :
The use of computationally efficient substructures for predictive FIR filters is proposed. When recursive running-sum blocks are used as subfilters, only a small number of multipliers are needed for predictor implementation. A design algorithm is described, based on using time-domain constraints to define the composition of the impulse response for least-squares optimization. Polynomial and sinusoidal predictors are given as examples, and are compared with the direct form structures.
Keywords :
FIR filters; interconnections; least squares approximations; optimisation; prediction theory; recursive estimation; time-domain analysis; computationally efficient substructures; design algorithm; direct form structures; finite impulse response filters; least-squares optimization; multipliers; polynomial predictors; predictive FIR filters; recursive running-sum blocks; sinusoidal predictors; subfilters; tapped cascaded interconnection; time-domain constraints; Periodic structures; Polynomials;
Conference_Titel :
Signal Processing Conference, 2002 11th European
Conference_Location :
Toulouse
