Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
566817 | Signal Processing | 2009 | 6 Pages |
Abstract
For more than a decade it has been empirically known that the causal portion of the inverse Fourier transform of the magnitude spectrum of the speech signal behaves like a minimum-phase signal. Later on, this statement has been shown for an all-pole model. In this paper, we consider related results for both discrete-time Fourier and discrete Fourier transforms of arbitrary sequences. We indicate how the presence of aliasing in circular autocorrelation might be detected. The energy concentration property of zero-phase sequences is discussed.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Corneliu Rusu, Jaakko Astola,