Two-dimensional delta-operator formulated discrete-time systems: analysis and synthesis of minimum roundoff noise realizations

Mahes M. Ekanayake, Kamal Premaratne

Research output: Contribution to journalConference article

6 Scopus citations


The roundoff noise performance of a δ-operator formulated 2-D state space digital filter is investigated. Synthesis procedures are developed and it is shown that unlike in the q-operator case, the optimum realizations are different for single-length accumulator and double-length accumulator based filters. A method is presented to find the sampling times so that the probability of overflow of the state derivatives is less than that of the state variables. A numerical example is presented to compare different schemes.

Original languageEnglish (US)
Pages (from-to)213-216
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - Jan 1 1996
EventProceedings of the 1996 IEEE International Symposium on Circuits and Systems, ISCAS. Part 1 (of 4) - Atlanta, GA, USA
Duration: May 12 1996May 15 1996


ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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