Sampling Theory — Aliasing (194)

• 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

Sampling Theory — Aliasing