The architecture and calculation of Radix-4 butterfly

[siva_7517]

Hi,

Currently i am designing a fft chip for ofdm system. Is there any good website or file with the architecture and calculation on radix-4 butterfly. I need this radix to implement in 64 point fft.
Thanx
Siva

 

[vadkudr]

Re: radix-4 fft

See
Electronics letters, 5th January 1984 Vol.20 N1
'Split Radix' FFT algorithms. P. Duhamel, H.Hollman pp.14-16

 

[akash_189]

Re: radix-4 fft

a very good description is given in the digital signal processing book by Proakis,

 

[chetanbs]

Re: radix-4 fft

Hello,
I had got few pages on radix-4 FFT while i was implementing the same. am attaching the doc with this.....hope it would be useful

Chetan