NDLI: Design of two-dimensional digital filters via spectral transformations

Content Provider	IEEE Xplore Digital Library
Author	Chakrabarti, S. Mitra, S.K.
Copyright Year	1963
Abstract	Complex maps, with domains and codomains consisting of rational transfer functions, have often been used in designing two-dimensional (2-D) digital filters. Such maps, commonly known as spectral transformations, have the important property of carrying a stable rational transfer function to another stable rational function. This paper presents a unified framework for designing 2-D stable digital filters from prescribed magnitude-response specifications using spectral transformations such that the magnitude response of the resultant approximation is sort of a "best" approximation of the given specification. It is shown that there are two basic strategies for such designs, each with its own advantages and disadvantages. The design procedures are illustrated with practical examples. Further, it is also shown that all earlier results on 2-D filter design using spectral transformations follow as special cases of the general theory presented here.
Sponsorship	IEEE Publication
Starting Page	905
Ending Page	914
Page Count	10
File Size	1125754
File Format	PDF
ISSN	00189219
Volume Number	65
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1977-06-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Digital filters Transfer functions Finite impulse response filter Large scale integration Two dimensional displays IIR filters Stability Filtering theory Frequency response Design methodology
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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