Fourier Transforms, Aliasing (Chapter 10 reference) (116)

Chapter Outline

Appendix C-10 - Fourier Transforms, Aliasing (Chapter 10 reference) (Fundamentals of Vibration for Test Applications)

  • The Fourier Transform
    • Discrete Fourier Analysis
    • Fast Fourier Transform (FFT)
    • Phase of Frequency Domain Components
  • Spectrum Analyzers
    • Quick Look vs. Detailed Analysis
    • Power Spectral Density .. Physical Meaning
    • Transfer Functions
  • Data Acquisition
    • Sampling Theory.. Digitizing "Rules"
    • How Often to Sample?
    • Shannon's Theorem
    • The Nyquist Frequency
    • Aliasing Example
    • The Spectral View
    • Aliasing.. Viewed as Folding
    • Alias Protection with Filters