An alternative approach for obtaining 2D discrete filters by cascading sections each having unity degree in each variable

C. S. Gargour, V. Ramachandran, Ravi P. Ramachandran

Research output: Contribution to journalArticle


The properties of a 2D discrete transfer function with degree of each variable being unity are discussed. The coefficients of the denominator polynomial contain a parameter k (having real values) whose bounds are determined by stability considerations. These bounds are obtained by testing the overall polynomial at only four points z1 = ±1 and z 2 = ±1. Suitable numerator polynomial can be associated to get the overall transfer function. Such structures can be cascaded so that the overall magnitude response can be changed by altering the response of one or more sections.

Original languageEnglish (US)
Pages (from-to)1085-1103
Number of pages19
JournalJournal of Circuits, Systems and Computers
Issue number5
Publication statusPublished - Oct 1 2004


All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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