Title :
New realization and implementation of IIR digital filters using residue feedback
Author :
Tawfik, A. ; Agathoklis, P. ; El-Guibaly, F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
fDate :
31 Oct-2 Nov 1994
Abstract :
A new low-roundoff realization for narrow-band IIR digital filters, which uses the residue feedback technique, is presented. The structure has a saving of N(N-2)/2 multiplies over the optimal structure proposed by Mullis, Roberts [1976] and Hwang [1977], as well as, the optimal residue feedback structure proposed by Williamson [1986]. The output roundoff noise for the proposed structure is slightly higher than that of the structure proposed by Williamson. Further, the proposed structure has a block-triangular state-update matrix which is suitable for high-speed hardware implementation. A VLSI array-processor implementation of the proposed IIR structure in which the computation rate is maximized is also presented
Keywords :
IIR filters; VLSI; computational complexity; digital filters; matrix algebra; parallel architectures; pipeline processing; residue number systems; roundoff errors; state feedback; VLSI array-processor implementation; block-triangular state-update matrix; computation rate; high-speed hardware implementation; implementation; low-roundoff realization; narrow-band IIR digital filters; optimal structure; output roundoff noise; residue feedback; Covariance matrix; Digital filters; Equations; Feedback; Hardware; Multi-stage noise shaping; Narrowband; Quantization; Radio frequency; Very large scale integration;
Conference_Titel :
Signals, Systems and Computers, 1994. 1994 Conference Record of the Twenty-Eighth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-6405-3
DOI :
10.1109/ACSSC.1994.471438
