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A new algorithm for the radix-3 FFT

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2 Author(s)
Dubois, E. ; INRS-Telecommunications, Verdun, Quebec, Canada ; Venetsanopoulos, A.

A radix-3 FFT which has no multiplications in the three-point DFT's is introduced. It uses arithmetic with numbers of the form a + bμ, where μ is a complex cube root of unity. The application to fast convolution of real sequences is discussed.

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Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:26 ,  Issue: 3 )