Modified realization technique for digital filters derived from analog counterparts
type: Item
instance of: scholarly article
title: Modified realization technique for digital filters derived from analog counterparts
zbMATH Open document ID: 0606.93064
DOI: 10.1016/0016-0032(86)90058-X
author: B. George
published in: Journal of the Franklin Institute
publication date: 1986-01-01T00:00:00Z
review text: A simple realization scheme for one-dimensional and two-dimensional recursive digital filters derived from analog reference transfer functions is presented. The method is based on proper predistortion of the analog transfer function to obtain a new Hurwitz polynomial. Analog- to-digital transformations, such as the bilinear transformation, are then applied to the resulting predistorted reference transfer function to obtain the discrete version of the system. It is shown that a proper choice of the predistorting function will yield digital realizations which are free of the delay-free loops and in most cases are near minimal. To illustrate the simplicity and efficiency of the technique, examples of 1-D and 2-D cases are worked out. The proposed scheme can readily be extended to include the multi-dimensional case.
Mathematics Subject Classification ID: 93E11
Mathematics Subject Classification ID: 93B15
Mathematics Subject Classification ID: 93B17
Mathematics Subject Classification ID: 93C57
Mathematics Subject Classification ID: 94C99
zbMATH DE Number: 3981073
zbMATH Keywords: realization
zbMATH Keywords: recursive digital filters
zbMATH Keywords: analog reference transfer functions
zbMATH Keywords: Analog-to-digital transformations
MaRDI profile type: Publication
cites work: Q4146660
description: scientific article; zbMATH DE number 3981073