Title :
A two stage genetic algorithm for optimisation of causal IIR perfect reconstruction multirate filter banks
Author :
Baicher, G. Singh
Author_Institution :
Univ. of Wales Coll. Newport, UK
Abstract :
A procedure for optimisation of two channel perfect reconstruction filter banks using causal infinite impulse response (IIR) digital filters through the transformation of variables method is presented. A two stage genetic algorithm is used for the optimisation procedure where the first stage GA searches for near optimal values of the transformation function variables. The second stage GA optimises the filter coefficients for finite wordlength effects for real time implementation of causal IIR filters. Some examples are presented and their results included to show the efficacy of this method for real time implementation
Keywords :
IIR filters; genetic algorithms; signal reconstruction; GA; causal IIR filters; causal infinite impulse response digital filters; genetic algorithm; perfect reconstruction filter banks; two channel; Channel bank filters; Design methodology; Digital filters; Filter bank; Genetic algorithms; IIR filters; Image reconstruction; Optimization methods; Signal processing; Speech coding;
Conference_Titel :
Evolutionary Computation, 1999. CEC 99. Proceedings of the 1999 Congress on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-5536-9
DOI :
10.1109/CEC.1999.782518
