Presented at the 1997 IEEE International Conference on Telecommunicatons in Modern Satellite Cable and Broadcasting Services

Design Space Approach to Advanced 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
elutovac@ubbg.etf.bg.ac.yu - etosicde@ubbg.etf.bg.ac.yu

(2) Department of Electrical and Computer Engineering, Engineering Science Building, The University of Texas at Austin, Austin, TX 78712-1084 USA
bevans@ece.utexas.edu

Abstract

This paper reviews the basic definitions of a filter design. It introduces straightforward procedures to map the filter specification into the design space, i.e. a set of ranges for parameters that we use in the filter design. We search this design space for the optimum solution according to given criteria, such as minimal Q-factor or minimal quantization error.

The principal drawback of the classical filter design is in returning only one solution, which can be unacceptable for many practical implementations. We propose a new approach to the filter design by using a mixture of symbolic and numeric computation and discrete non-linear optimization. This approach should provide reduced filter complexity for a desired performance, or better performances for the required complexity.

The full paper is available in PDF format.

Last Updated 02/06/99.