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FFT for ADC output

  1. Jun 15, 2010 #1

    Hi All,
    Its my first post here. I want to know how the digital output which comes out of an ADC can be used to calculate FFT. Because FFT algorithms usually needs real and imaginary parts of a sampled signal?

  2. jcsd
  3. Jun 15, 2010 #2
    The imaginary part is zero.
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