Title :
Low-complexity, perfect reconstruction FIR QMF bank
Author :
Chen, Sau-Gee ; Kao, Min-Chi
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
7/23/1998 12:00:00 AM
Abstract :
A low-complexity, perfect reconstruction quadrature mirror filter (QMF) bank is proposed, which requires only 50% of the multiplications and additions of the existing QMF banks per output sample. In addition, the new QMF bank only needs to solve a set of linear equations instead of the commonly required nonlinear optimisation technique for the prototype filter
Keywords :
FIR filters; quadrature mirror filters; signal reconstruction; addition; linear equation; low-complexity perfect reconstruction FIR QMF bank; multiplication; quadrature mirror filter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981038
