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Sampling Theory โ Aliasing (196)
Chapter Outline
Chapter 6 - Sampling Theory โ Aliasing (Digital Data Acquisition)
- Sampling Theory—Digitizing “Rules”
- How Often to Sample?
- Conventional Wisdom
- Shannon’s Theorem
- Digitizing With various numbers of Points/Cycle
- Aliasing Example
- Aliasing: Correctly Sampled Set
- Aliasing: Undersampled Set
- Aliasing Example .. Comparison of Data Sets
- The Spectral View
- Aliasing.. Viewed as Folding
- The Insidious Part
- Where Does the Aliased Data Appear?
- Aliasing Example .. Sine Signal
- Aliasing/Multiple Folding
- Another View of Folding (and a Trick!)
- The Way It has been Done So Far
- “Undersampling”
- The Aliasing Diagram
- Critical Points
Video Outline
Sampling Theory โ Aliasing