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A Parallel Implementation of the Fast Fourier Transform Algorithm

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1 Author(s)
Bergland, G.D. ; Bell Telephone Laboratories, Inc., Whippany, N. J. 07981.

For many real-time signal processing problems, correlations, convolutions, and Fourier analysis must be performed in special-purpose digital hardware. At relatively high levels of performance, it becomes necessary for this hardware to perform some of its computations in parallel. A parallel FFT algorithm is described that segments the fast Fourier transform algorithm into groups of identical parallel operations that can be performed concurrently and independently. A hardware implementation of the algorithm is described in the context of the parallel element processing ensemble (PEPE) previously described by Githens [7], [8].

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Computers, IEEE Transactions on  (Volume:C-21 ,  Issue: 4 )