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Implement Signal Filter with Fast Fourier Transform

Oct 1, 2011 at 4:03 PM


I have a device that is providing a discrete signal with double values.

How can I transform and visualize it with FFT in

Simply creating a buffer window, apply FFT and get the first value from the result does not work. I thought that it would be similar to an averaging filter, but I think it is not.

Please help.