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Lecture 13: Sampling and Aliasing

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Presentation on theme: "Lecture 13: Sampling and Aliasing"— Presentation transcript:

1 Lecture 13: Sampling and Aliasing
Signals and Systems Lecture 13: Sampling and Aliasing

2 Today's lecture Aliasing Folding Ideal Reconstruction
D-to-A Reconstruction Pulse Shapes for Reconstruction Sampling Theorem & Band-limited Signals

3 The Rest of The Story

4 Spectrum for x[n]

5 Spectrum (More Lines)

6 Spectrum (Folding Case)

7 D-to-A Reconstruction

8 D-to-A is Ambiguous!

9 Spectrum (Aliasing Case)

10 Reconstruction (D-to-A)

11 Sample & Hold Device

12 Square Pulse Case

13 Over-Sampling Case

14 Math Model for D-to-A

15 Expand the Summation

16 Pulse Shapes

17 Optimal Pulse

18 Assignment # 3 Chapter 4 End of Chapter questions P-4.5 Page 96
Submission Date: Before the start of lecture,

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