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A VLSI Network for Variable Size FFT's

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1 Author(s)
Bongiovanni, G. ; Istituto Matematico G. Castelnuovo, Università di Roma, Città Universitaria

A network for the evaluation of the fast Fourier transform (FFT) is presented. Such a network is able to compute, in parallel, the FFT's of arbitrary partitions in powers of two of the N input elements. It is shown that, under a VLSI model of computations, such a design requires the same asymptotical area and attains the same throughput as the corresponding network for the evaluation of a single N-element FFT.

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Computers, IEEE Transactions on  (Volume:C-32 ,  Issue: 8 )