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Remarks on translation by sign modulation

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2 Author(s)
E. M. Johansson ; Lawrence Livermore Nat. Lab., CA, USA ; J. P. Fitch

It is shown that if sign modulation is applied in both the sample and transform domains to a signal whose dimension is not an integral multiple of four, then a phase error results in the transformed signal. Although this result is inconsequential to radix-two algorithms, it is extremely important to the increasingly popular prime-radix and mixed-radix fast Fourier transform (FFT) algorithms

Published in:

IEEE Transactions on Signal Processing  (Volume:39 ,  Issue: 4 )