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A novel approach to the exact design of LDI digital filters

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3 Author(s)
Nowrouzian, B. ; Bell Northern Res. Ltd., Ottawa, Ont., Canada ; Bruton, L.T. ; Agnew, D.G.

A novel method is presented for the exact design and synthesis of lossless discrete-integrator (LDI) digital filters. In this method, the entire digital filter synthesis is performed directly in the discrete-time z-domain without any recourse to the concept of a continuous-time analog prototype reference filter. The proposed design method lends itself in a straightforward fashion to the synthesis of high-quality LDI digital filters having ladder, lattice, or other similar practical configurations. In addition, it is capable of realizing a wide class of practical digital transfer functions, including the classical Butterworth Chebyshev, inverse Chebyshev, and, most importantly, elliptic transfer functions

Published in:

Circuits and Systems, 1992., Proceedings of the 35th Midwest Symposium on

Date of Conference:

9-12 Aug 1992