Title :
Optimal Design of a Class of M-Channel Uniform Filter Bank using Genetic Algorithms
Author :
Baicher, Gurvinder S.
Author_Institution :
Depts. of Comput. & Eng., Univ. of Wales Newport, Newport, UK
Abstract :
This paper deals with the optimization of a class of M-channel uniform multirate filter bank. The specific case of a cosine modulated pseudo quadrature mirror filter (QMF) bank is considered for which all the filter bank channels are of equal width on the frequency scale. The design and optimization of the filter bank is based on the use of a single prototype filter. The first stage optimization process is based on perturbing the bandwidth and roll-off factor of a raised cosine prototype filter by using a genetic algorithm (GA) technique. Further improvements are subsequently derived by using a downhill Simplex optimization method.
Keywords :
channel bank filters; circuit optimisation; genetic algorithms; quadrature mirror filters; M-channel uniform filter bank optimal design; QMF bank; downhill simplex optimization; filter bank channels; genetic algorithms; optimization process; pseudo quadrature mirror filter bank; roll-off factor; Algorithm design and analysis; Bandwidth; Channel bank filters; Design optimization; Filter bank; Frequency; Genetic algorithms; Mirrors; Optimization methods; Prototypes; Optimization; Uniform Filter Banks; genetic algorithms;
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
DOI :
10.1109/ICSPC.2007.4728619
