Minimum-phase parts of zero-phase sequences

被引：3

作者：

Rusu, Corneliu ^{[1
]}

Astola, Jaakko ^{[2
]}

机构：

[1] Tech Univ Cluj Napoca, Fac Elect Telecommun & Informat Technol, RO-400027 Cluj Napoca, Romania

[2] Tampere Univ Technol, Tampere Int Ctr Signal Proc, FIN-33101 Tampere, Finland

来源：

SIGNAL PROCESSING | 2009年 / 89卷 / 06期

关键词：

Signal reconstruction; Discrete-time Fourier transform; Discrete Fourier transform; Nonuniform discrete Fourier transform; Minimum-phase function; RECONSTRUCTION;

D O I：

10.1016/j.sigpro.2008.12.006

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：1032 / 1037

页数：6

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