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A new class of linear-phase FIR filters based on switching and resetting of IIR filters

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3 Author(s)
P. Arian ; Tampere University of Technology, Institute of Signal Processing, P.O.Box 553,33101, Tampere, Finland ; T. Saramaki ; A. T. Fam

A class of linear-phase FIR lters was originally introduced by the last two authors of this article. Their proposed structure approximated the transfer function of G(z)G(z-1), where G(z) was the transfer function of a Stable IIR lter. The approximation to G(z)G(z--1) was essentially a truncation of its impulse response performed by a feed forward part, followed by a shift to make it implementable. This paper introduces a new approximation to G(z)G(z-1), based on an alternative truncation scheme, and discusses its advantages over the original design.

Published in:

Norchip Conference, 2004. Proceedings

Date of Conference:

8-9 Nov. 2004