Article ID Journal Published Year Pages File Type
566817 Signal Processing 2009 6 Pages PDF
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
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