On second-order statistics of log-periodogram and cepstral coefficients for processes with mixed spectra

被引：7

作者：

Zheng, Chengshi ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Acoust, Key Lab Noise & Vibrat Res, Beijing 100190, Peoples R China

来源：

SIGNAL PROCESSING | 2012年 / 92卷 / 10期

关键词：

Mixed spectrum processes; Log-periodogram; Spectral estimation; SPEECH;

D O I：

10.1016/j.sigpro.2012.03.010

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：

This paper studies the impact of multiple sinusoids on the statistical properties of log-periodogram and cepstral coefficients. We derive explicit expressions for the means and the covariances of both the log-periodogram and cepstral coefficients for processes with mixed spectra. The numerical simulations are given to verify the analytical results. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2560 / 2565

页数：6

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