Title :
Remarks on translation by sign modulation
Author :
Johansson, E.M. ; Fitch, J.P.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
fDate :
4/1/1991 12:00:00 AM
Abstract :
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
Keywords :
fast Fourier transforms; modulation; signal processing; FFT algorithm; digital signal processing; mixed-radix fast Fourier transform; phase error; prime radix algorithm; radix-two algorithms; sign modulation; transformed signal; translation; Computer simulation; Covariance matrix; Digital modulation; Direction of arrival estimation; Discrete Fourier transforms; Euclidean distance; Multiple signal classification; Signal processing; Smoothing methods; Speech processing;
Journal_Title :
Signal Processing, IEEE Transactions on
