Design of causal stable perfect reconstruction two-channel filter banks (CROSBI ID 481588)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bregović, Robert ; Saramäki, Tapio
engleski
Design of causal stable perfect reconstruction two-channel filter banks
An efficient optimization algorithm is proposed for designing causal stable perfect-reconstruction two-channel infinite impulse response filter banks originally introduced by Basu, Chiang, and Choi. The problem is stated as a constrained optimization problem where the maximum of the stopband energies of the analysis filters is minimized subject to the given constraints. First, the maximum allowable passband ripple of both filters is fixed and the maximum value in the transition bands is the maximum allowable passband value. Second, the poles of these filters are forced to lie inside the unit circle. It is shown that the second constraint can be included in the proposed algorithm by using Rouchés theorem. Several examples are included illustrating the efficiency of the proposed design scheme as well as the superiority of the resulting banks compared to those ones obtainable by using other existing design techniques.
two-channel filter banks. IIR filters; stability; optimization
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Podaci o prilogu
545-550-x.
2001.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of 2nd International Symposium on Image and Signal Processing and Analysis
Lončarić, Sven ; Babić, Hrvoje
Zagreb: Sveučilišni računski centar Sveučilišta u Zagrebu (Srce)
Podaci o skupu
International Symposium on Image and Signal Processing and Analysis
predavanje
19.06.2001-21.06.2001
Pula, Hrvatska