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Understanding FFTs and Windowing


Learn about the time and frequency domain, fast Fourier transforms (FFTs), and windowing as well as how you can use them to improve your understanding of a signal.

This white paper is part of our Instrument Fundamentals Series.

Topics Covered

  • Understanding the time domain, frequency domain, and fast Fourier transform (FFT)
  • All signals are the sum of sines
  • Deconstructing signals using the FFT
  • Overview of windowing
  • Windowing functions
Next Steps