Presented at the 1999 European Conference on Circuit Theory and Design

Advanced Digital IIR Filter Design

Miroslav Lutovac (1), Dejan Tosic (1), and Brian L. Evans (2)

(1) Dept. of Electrical Engineering, University of Belgrade, P.O. Box 35-54, 11120 Belgrade, Yugoslavia -

(2) Department of Electrical and Computer Engineering, Engineering Science Building, The University of Texas at Austin, Austin, TX 78712-1084 USA



Classical filter design techniques return only one design from an infinite collection of alternative designs, or fail to design filters when solutions exist. Threse classical techniques hide a wealth of alternative filter designs that are more robust when implemented in digital hardware or embedded software. In this paper, we present (1) case students of optimal digital IIR filters that cannot be designed with classical techniques, and (2) the formal, mathematical framework that underlies their solutions. We have automated the advanced filter design techniques in software.

The full paper is available in PDF format.

Last Updated 09/27/99.