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Altera_Forum
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14 years ago

How to implement IFFT by megafunction?

Hi, In my project, I have to implement the FFT and IFFT operators. I have seen megafunction FFT integrated in Quartus II, but I don't know where's the IFFT core. Please show me where's IFFT co...
Altera_Forum's avatar
Altera_Forum
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14 years ago

The IFFT can be implemented with an FFT. IIRC you need to do a conjugate operation on both the input and the output, and you may need to do a scaling (divide by N I think).