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Altera_Forum
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17 years ago

Altera FFT - output scaling. How to do this correctly?

Hi, I do not get correct scaled results if I do everything the FFT user guide recommends. I have instantiated a 1024 points FFT, with single output and burst architecture. The data width...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

It seems you are saying that altera acknowledged the wrong exponent and passed the issue to you. This is unrealistic. With the suggested method you may find out scaling in real time if you use sine input only but can't use it when input is random or an application signal since amplitudes are unknown.