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Altera_Forum
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11 years ago

For those who care about hardware resources with the Altera FFT IP core

Dear all, Apparently, there are quite a few users of the Altera FFT IP core on this forum. The hardware resources used by the FFT can be very high (especially if the FFT length is high), so for...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

I think for sure there are ways to optimize more, and more analysis could indicate how to improve the accuracy.

For example, in the implementation I did, I make a simple truncation by taking the 16 MSBs of the 34 bits. And looking back to the example available in the zip file, in the proposed implementation I see that few MSBs of the output are not used (the maximum output value measured is 11 % the maximum possible). So, there are smarter approach, I did the simplest one.