Title :
Identification techniques for the design of cascade forms perfect-reconstruction two-channel filter banks
Author :
Bihan, HervéLe ; Siohan, Pierre
Author_Institution :
CCETT, Cesson Sevigne, France
Abstract :
The purpose of the paper is to show the close relations between the two types of structures, transversal and cascade form, usually proposed for the design of two-channel perfect-reconstruction filter banks with FIR linear-phase analysis and synthesis filters. Based on a linearization of the non-linear problems, related to the identification of cascade form perfect reconstruction systems, recursive algorithms are derived. Numerical results are presented which illustrate the accuracy of the identification methods. Two design examples are also given, corresponding to biorthogonal solutions for the two types of systems, i.e. with even and odd length filters; which satisfy selectivity and regularity constraints
Keywords :
FIR filters; cascade networks; delay circuits; identification; signal reconstruction; FIR linear-phase analysis filters; FIR linear-phase synthesis filter; biorthogonal solutions; cascade forms perfect-reconstruction two-channel filter banks; design; even length filters; identification techniques; linearization; nonlinear problems; odd length filter; recursive algorithms; regularity constraints; selectivity constraints; transversal form; Biomedical signal processing; Channel bank filters; Design methodology; Discrete wavelet transforms; Filter bank; Finite impulse response filter; Lattices; Signal processing algorithms; Signal synthesis; Transversal filters;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.390058