IIR Filter Design by Transformation

  • Leland B. Jackson
Chapter

Abstract

The first techniques for discrete-time filter design we shall study involve transformation of the designs for continuous-time filters. The classical filter approximations are of particular interest because they are equally applicable, in most cases, to continuous- or discrete-time design and because they are so widely known and satisfy various optimality criteria. Of necessity, discrete-time filters derived by transformation from continuous-time designs are IIR filters because the number of finite poles must equal or exceed the number of finite zeros in the continuous-time case in order to prevent infinite gain at infinite frequency.

Keywords

Cutoff Frequency Lowpass Filter Filter Design Magnitude Response Spectral Transformation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Leland B. Jackson
    • 1
  1. 1.University of Rhode IslandUSA

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