Problems of Information Transmission

, Volume 53, Issue 3, pp 284–293 | Cite as

On the real complexity of a complex DFT

  • I. S. Sergeev
Large Systems


We present a method to construct a theoretically fast algorithm for computing the discrete Fourier transform (DFT) of order N = 2 n . We show that the DFT of a complex vector of length N is performed with complexity of 3.76875N log2 N real operations of addition, subtraction, and scalar multiplication.


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© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  1. 1.Federal State Unitary Enterprise “Kvant Scientific Research Institute,”MoscowRussia

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