Newbie here.
I want to ask for NTT Implementation. We know there are several options like Cooley-Tukey, Gentleman-Sande, and Stockholm. Also, there's something called Decimation in Time (DIT) and Decimation in Frequency (DIF).
As long as I know, the DIC and DIT have different purposes and different Butterfly Unit structures. As the picture follows,
I'm not sure the difference about Cooley Tukey and Gentleman Sande, but I know one of them should have normal order input and later on bit-reversed order for the output.
Does anyone can explain it more clearly the difference between them ? Also Can I use DIF also DIT for Cooley Tukey ?
