Title :
The design of two-channel PR FIR filter bank with linear-phase using evolutionary strategies
Author :
Guangming, Shi ; Licheng, Jiao ; Xuemei, Xie
Author_Institution :
Lab. for Radar Signal Process., Xidian Univ., Xi´´an, China
Abstract :
A novel method for the design of a two-channel linear-phase perfect reconstruction (PR) FIR filter bank is proposed. In order to ensure the PR property, a lattice architecture has been adopted. Evolutionary strategies (ES) are used to search for an optimal set of coefficients in lattice structure. For increasing the searching speed, an initial set of coefficients is obtained by a constrained optimization method. Some design examples are given to illustrate the proposed method. The results are presented which show that this method can be used to design the filter bank with high stop band attenuation, compared to conventional methods
Keywords :
FIR filters; band-stop filters; channel bank filters; evolutionary computation; lattice filters; linear phase filters; optimisation; constrained optimization method; evolutionary strategies; high stop band attenuation; lattice architecture; linear-phase; searching speed; two-channel PR FIR filter bank; two-channel linear-phase perfect reconstruction FIR filter bank; Channel bank filters; Design methodology; Filter bank; Finite impulse response filter; Image reconstruction; Laboratories; Lagrangian functions; Lattices; Radar signal processing; Signal processing;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.893436
