Title :
Lattice structures for design of three-channel linear-phase perfect-reconstruction FIR QMF banks
Author :
Nguyen, Truong Q. ; Vaidyanathan, P.P.
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The authors present a perfect-reconstruction FIR (finite impulse response) linear-phase lattice structure for the three-channel QMF (quadrature mirror filter) bank. Both the analysis and the synthesis filters are linear-phase. To speed up the design time, the pairwise mirror-image condition is imposed on the resulting lattice structure. A design example is presented, and the complexity of the analysis bank is discussed
Keywords :
digital filters; filtering and prediction theory; analysis bank; analysis filters; complexity; finite impulse response; lattice structure; pairwise mirror-image condition; quadrature mirror filter; synthesis filters; three-channel linear-phase perfect-reconstruction FIR QMF banks; Filter bank; Filtering theory; Finite impulse response filter; Image reconstruction; Lattices; Matrix decomposition; Nonlinear filters; Speech synthesis; Symmetric matrices; USA Councils;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on
Conference_Location :
Glasgow
DOI :
10.1109/ICASSP.1989.266684
