Complex Domain Digital Filter Design with Max-Min Type Amplitude Constraints and Group Delay Specifications

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Zhuquan Zang, Sven Nordholm, Sven Nordebo
Title: Complex Domain Digital Filter Design with Max-Min Type Amplitude Constraints and Group Delay Specifications
Conference name: IEEE TENCON 2001
Year: 2001
Pagination: 265-269, vol. 1
ISBN: 0 7803 7101 1
Publisher: IEEE
City: Singapore
Organization: Blekinge Institute of Technology
Department: Department of Telecommunications and Signal Processing (Institutionen för telekommunikation och signalbehandling)
Department of Telecommunications and Signal Processing S-372 25 Ronneby
+46 455 38 50 00
Language: English
Abstract: This paper considers the design of a digital filter with prescribed magnitude and group delay specifications. Our aim is to devise suitable methods/algorithms which are useful for the design of a set of filters for multiuser communication systems. To do this, we formulate our filter design problem as a constrained L2 space minimization problem in which the performance requirement on the group delay and magnitude in the passband are treated as constraints while minimizing the L2 norm of the error function between the designed and the desired filters. Methods for solving the proposed nonlinear and nonconvex optimization problem are outlined. Numerical results are presented to illustrate the usefulness of the proposed method.
Subject: Signal Processing\Filter Design
Keywords: circuit optimisation, delays, digital filters, IIR filters, minimax techniques, network synthesis
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