Review of Discrete-Time Signal Processing
In this brief overview of discrete-time signal processing, emphasis is placed on the specification and characterization of discrete-time signals and discrete-time systems. The review of stochastic processes and random variables was useful to model most digital communication signals. A review of linear discrete-time signal processing, on the other hand, is needed to model the effects of the channel on digital communication signals. Digital-time signal processing is a vast and well-documented area of engineering. For interested readers, there are several excellent texts [7, 10, 18] that give a more rigorous treatment of discrete-time signal processing to supplement the material given in this section.
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