Naslov
Design of two-channel low-delay FIR filter banks using constrained optimization

Autori
Bregović, Robert ; Saramäki, Tapio

Izvornik
CIT Journal of Computing and Information Technology (1330-1136) 8 (2000), 4; 341-348

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
filter banks; low-delay; optimization

Sažetak
This paper shows the efficiency of using constrained optimization for designing two-channel low-delay finite impulse response filter banks. The filter banks under consideration are quadrature mirror filter (QMF) banks and perfect reconstruction (PR) biorthogonal filter banks. The design problems for both types of banks are stated as constrained minimization problems in forms that enables us to minimize the maximum of the stopband energies of the analysis filter(s) subject to the given passband and transition band constraints of the filter(s) as well as subject to the given allowable reconstruction error for QMF banks or the PR property for biorthogonal filter banks. For solving the given optimization problems a modified Dutta-Vidyasagar optimization technique has been used. The efficiency of the proposed design methods is illustrated by means of some examples.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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