Recent content by rjunior

  1. R

    FFT for Sinusoidal Signal: 100 kHz, Peaks @ k=100, 412

    Dear uart, Thank you for your attention. I have developed the equation but how i do to get signal frequency. Thanks in advance df = fs/N f1 = 100 df fs - f1 = 412 df fs - 100 df = 412 df fs/N (N - 100 ) = 412 fs/N N - 100 = 412 N = 512
  2. R

    FFT for Sinusoidal Signal: 100 kHz, Peaks @ k=100, 412

    uart, Thanks for your attention. Let suppose it is X(0).
  3. R

    Smoothing Data with Average Calculation

    How to make it causal: y (n) = x ((n-1) + x(n) + x(n+1))/3
  4. R

    FFT for Sinusoidal Signal: 100 kHz, Peaks @ k=100, 412

    Suppose you have the FFT of a sinusoidal signal sampled at 100 kHz and it has energy peaks at k = 100 and k = 412. How many points is the FFT? What is the frequency of the signal?