Recursive filters

I. The output sample Sk is a function of:

  1. present and past inputs, past outputs
  2. past outputs (Sn-i) only
  3. present input and past outputs


II. Let the transfer function of a RIF filter be:. Which is the parameter allowing us to determine the filter stability?

  1. b0
  2. z
  3. a1


III. It is possible to determine the impulse response of a recursive filter from:

  1. Its tranfer function
  2. Its recurrence equation
  3. Its response to an echelon


IV. What are the methods for recursive filter design?

  1. Poles and zeros method
  2. Bilinear transform
  3. Windowing



Texte - Copyright © 1996, 1997 DECLE & BURTAIRE

Texte - Copyright © 1997, 1998 JACQUEMIN & PETETIN