Fast Fourier Transform Calculator

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  • To do an FFT

    1. Enter the time domain data in the Time Domain Data box below with each sample on a new line. For complex (I and Q) data, the real and imaginary components should be on the same line saparated by a comma.

    2. Select the Window from the drop down menu (if you are not sure which window to use the default is good choice for most things).

    3. Press the FFT button.

  • To do an Inverse FFT

    1. Enter the frequency domain data in the Frequency Domain Data box below with each sample on a new line. For complex (I and Q) data, the real and imaginary components should be on the same line saparated by a comma or tab.

    2. Press the Inverse FFT button (note that no window function is used for the inverse FFT).

  • The time or frequency domain graphs can now be viewed by clicking the Time Domain Graph or Power Spectrum buttons.

  • To generate sample time domain data click the Sample Data button.

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FFT Applet version 1.2.2. Click here to see change history and previous versions






 
 
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This page was last changed on: 27 May 2012.

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