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Design of highly selective two-dimensional recursive fan filters by relaxing symmetry constraints

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3 Author(s)
Lin, z. ; Dept. of Electr. Eng., Calgary Univ., Alta. ; Bruton, L.T. ; Bartley, N.R.

Shows for the design of quadrantally symmetric 2-D fan filters that it is unnecessarily restrictive to prescribe exact quadrantal symmetry, which requires that the denominator of the Z-transform transfer function be product-separable. Superior approximately symmetric fan filter designs can be achieved using nonseparable denominators

Published in:

Electronics Letters  (Volume:24 ,  Issue: 22 )