Title :
A design method of multi-channel cyclic filter banks with less multiplications by genetic algorithm
Author :
Itami, F. ; Watanabe, E. ; Nishihara, A.
Author_Institution :
Fac. of Eng., Saitama Inst. of Technol.
Abstract :
This paper proposes a design method of multi-channel cyclic filter banks with DFT modulation by genetic algorithms. First, their polyphase representations and perfect-reconstruction conditions are given. Next, based on such structure, we show optimization procedure using genetic algorithms, which enable us to realize DFT modulated cyclic filter banks with prototype filters that have coefficients of the sum of power-of-two numbers. Finally, we give simulation results of the algorithms
Keywords :
channel bank filters; discrete Fourier transforms; genetic algorithms; DFT modulation; digital filters; genetic algorithm; multi-channel cyclic filter banks; perfect-reconstruction; polyphase representations; Channel bank filters; Constraint optimization; Design engineering; Design methodology; Educational technology; Filter bank; Frequency; Genetic algorithms; Genetic engineering; Prototypes;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Conference_Location :
Tainan
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1412782
