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Generation of causal and semicausal 2‐D IIR structures from fir structures via state feedback
Author(s) -
Lehner D.,
Unbehauen R.
Publication year - 1987
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490150406
Subject(s) - infinite impulse response , finite impulse response , class (philosophy) , digital filter , control theory (sociology) , state (computer science) , extension (predicate logic) , computer science , 2d filters , filter (signal processing) , mathematics , algorithm , artificial intelligence , control (management) , computer vision , programming language
A method is presented to realize a class of 2‐D IIR digital filters by extension of 2‐D FIR structures through feedback paths. Most features of the initial FIR structures remain unchanged (e.g. parallelism, number of delay elements). the approach described is applied to a class of 2‐D FIR filter structures owning several advantages. the method is generalized to semicausal filters.