Fourier Transforms in VLSI

  • Authors:
  • C. D. Thompson

  • Affiliations:
  • Division of Computer Science, University of California

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 1983

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Abstract

This paper surveys nine designs for VLSI circuits that compute N-element Fourier transforms. The largest of the designs requires O(N2 log N) units of silicon area; it can start a new Fourier transform every O(log N) time units. The smallest designs have about 1/Nth of this throughput, but they require only 1/Nth as much area.