Title :
A new synthesis procedure for linear-phase paraunitary digital filter banks
Author :
Chen, L. ; Chan, K.P. ; Nguyen, T.Q. ; Zheng, Y.
Author_Institution :
Dept. of Comput. Sci., Hong Kong Univ., Hong Kong
Abstract :
In this paper, a new design algorithm is presented for a family of linear phase paraunitary filter banks with generalized filter length and symmetric polarity. A number of new constraints on the distributions of filter length and symmetry polarity among the channels are derived. In the algorithm, the lengths of the filters are gradually reduced through a cascade of lattice structures. The derivations for filter banks with even and odd number of channels are formulated in a unified form
Keywords :
delay circuits; digital filters; filtering theory; lattice filters; cascade; design algorithm; generalized filter length; lattice structures; linear-phase filter banks; paraunitary digital filter banks; symmetric polarity; synthesis procedure; Algorithm design and analysis; Artificial intelligence; Channel bank filters; Computer science; Design engineering; Digital filters; Filter bank; Finite impulse response filter; Lattices; Strontium;
Conference_Titel :
Circuits and Systems, 1997. ISCAS '97., Proceedings of 1997 IEEE International Symposium on
Print_ISBN :
0-7803-3583-X
DOI :
10.1109/ISCAS.1997.612801