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A direct design approach for two-dimensional low-pass and high-pass filters

✍ Scribed by J.J. Soltis; T.J. Kent; M.A. Sid-Ahmed

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 918 KB
Volume: 327
Category: Article
ISSN: 0016-0032
DOI: 10.1016/0016-0032(90)90029-i

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✦ Synopsis

The development of various direct design techniquesfor inherently stable, causal, recursive, 2-dimensional (2-D) digital filters is presented. These techniques center around the development of 2-D z-domain functions for use as arguments in the Chebyshev function and provide for the design of low-pass, band-pass and high-pass filters. In the case of each design technique, their development is detailed and illustrated through examples. The specifications that can be prescribed are passband ripple, filter order and normalized passband position parameters. In addition to being inherently stable, the filters possess an approximately flat group delay in most of the jilter's passband, necessary for most applications.

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