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The z-transform-18

Elsevier Inc.
DOI: 10.1016/b978-012294757-5/50022-2


Publisher Summary This chapter discusses z-transform and its two forms—bilateral and unilateral z-transforms. The z-transform converts a numerical sequence x[n] into a function of the complex variable z and it takes two different forms. The bilateral or two-sided z-transform, denoted in this chapter by Zb {x[n]}, is used mainly in signal and image processing, while the unilateral or one-sided z-transform, denoted by Zu {x[n]}, is used mainly in the analysis of discrete time systems and the solution of linear difference equations.

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