Consider a causal linear time-invariant system with system function where ? is real. (a) Write the difference

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Consider a causal linear time-invariant system with system function where ? is real.

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(a) Write the difference equation that relates the input and the output of this system.

(b) For what range of values of ? is the system stable?

(c) For ? = ?, plot the pole-zero diagram and shade the region of convergence.

(d) Find the impulse response h[n] for the system.

(e) Show that the system is an all-pass system, i.e., that the magnitude of the frequency response is a constant. Also, specify the value of the constant.

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Related Book For  book-img-for-question

Discrete Time Signal Processing

ISBN: 978-0137549207

2nd Edition

Authors: Alan V. Oppenheim, Rolan W. Schafer

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