A few comments:
If you take the FFT of an FFT of a time signal, the result is a
time-reversed version of the original. That's the main difference between
an FFT and an inverse FFT: the inverse FFT fixes this by reversing time.
The combination of FFT and inverse FFT raises amplitude by a factor
Hello Heystek,
This should have been part of your undergrad signal-processing course.
Usually in an inverse FFT, they include a scaling factor of 1/sqrt(2) or
something like that, I forget exactly. You might find some references here:
https://www.dspguide.com/
The application is doing
Hey James
I thought of the “to workspace” sink. I am not to familiar to write from
Simulink to the workspace, but I will give it a go! Thanks for the help.
Out of curiosity, if I have both halves of the symmetric FFT, what would be an
application do to another FFT? I have written an Matlab
Hello Heystek,
You can probably use a "to workspace" sink, then you'll be able to display
the data however you want in some matlab code once the simulation is
finished running.
Canonically, just applying an FFT to frequency-domain data will get you
back into the time domain, multiplied by some
Good day Casperites
I have an interesting question. I am using a FFT in simulink for the use in a
spectrometer design. I want to test the output of the FFT by using some kind of
scope. Simulink only has spectrum scope, that would be perfect, but the scope
does a second FFT on the signal. The
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