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Signals and Systems by Oktay Alkin

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Chapter 3

Analyzing Discrete-Time Systems in the Time Domain

Chapter Objectives

  • Develop the notion of a discrete-time system.
  • Learn simplifying assumptions made in the analysis of discrete-time systems. Discuss the concepts of linearity and time invariance, and their significance.
  • Explore the use of difference equations for representing discrete-time systems.
  • Develop methods for solving difference equations to compute the output signal of a system in response to a specified input signal.
  • Learn to represent a difference equation in the form of a block diagram that can be used as the basis for simulating or realizing a system.
  • Discuss the significance of the impulse response as an alternative description form for linear and time-invariant systems. ...

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