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Signals and Systems by Smarajit Ghosh

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6.20 SYSTEM FUNCTION AND POLE-ZERO PLOTS FROM z-TRANSFORM

The power series and rational form of z-transform have already been discussed. If z-transform is expressed as the ratio of two polynomials, it is known as the rational z-transform. Let us study the pole-zero plots in the z-plane as well as the system function.

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