The architecture and calculation of Radix-4 butterfly

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siva_7517

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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
 

Re: radix-4 fft

See
Electronics letters, 5th January 1984 Vol.20 N1
'Split Radix' FFT algorithms. P. Duhamel, H.Hollman pp.14-16
 
Re: radix-4 fft

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

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
 

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