Title :
Design of perfect reconstruction FIR multifilters
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The design of perfect reconstruction FIR multifilters is discussed in this paper. The Schur algorithm is applied to factorize the polyphase matrix of multifilters into lattice blocks. The multifilters are characterized by the chain parameters in each lattice block. The complete parameterization of paraunitary multifilters and a class of biorthogonal multifilters are derived. The parameterizations are minimal and result in simple design methods using unconstrained optimization
Keywords :
FIR filters; circuit optimisation; filtering theory; lattice filters; matrix algebra; signal reconstruction; FIR multifilters; Schur algorithm; biorthogonal multifilters; chain parameters; filter design; lattice blocks; paraunitary multifilters; perfect reconstruction filter banks; polyphase matrix; unconstrained optimization; vector valued filter banks; Biomedical signal processing; Design engineering; Design methodology; Drives; Filter bank; Finite impulse response filter; Image reconstruction; Lattices; Polynomials; Signal processing algorithms;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.681718
