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Honored Contributor
Honored ContributorImplement FFT in parallel
Hello, I have a question about the implementation of FFT in parallel. In the system, I have one main clock, let's call it Fsys. I have several data streams, with a lower rate than Fsys. S...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- The problem with this is that the number of FFTs to implement would be about 30/40. Another idea is to share the control signals between all the FFT as shown at the bottom of the joined picture. For me, this should work fine ... --- Quote End --- Hi Jérôme. What are the sizes of the FFT's and the data rates you are working with? 30 to 40 FFT's seems unrealistic in a system. So you will probably have to buffer and reuse some of the fft's at least. As for the data alignment, Yes it should work, but you can remove the uncertainty by just simply adding a few delay line registers so that all the data and SOP/EOP signals are aligned going into the FFT's. Pete
