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The design of elliptic digital filters through the bilinear transformation is considered. Sets of formulas are derived which can be used to design filters satisfying prescribed specifications. A simple design procedure based on these formulas is then described. The procedure is illustrated by designing an 8th-order bandpass filter and a 10th-order bandstop filter.
Electrical Engineers, Proceedings of the Institution of (Volume:124 , Issue: 4 )
Date of Publication: April 1977