检索结果-内蒙古大学图书馆

Comments on "Further improvements in digitizing continuous-time filters"

IEEE TRANSACTIONS ON signal processing 2001年第10期49卷 2431-2437页

作者： Braileanu, G Gonzaga Univ Dept Elect Engn Spokane WA 99258 USA

This correspondence points out that an algorithm proposed as a new digitizing method is, in fact, an extension of the linear interpolation design. Unlike previously published extensions, which incorporate the interpolation step into the s- to z-domain mapping step, this algorithm cascades the interpolator and the analog filter. Original design formulas derived for a rigorous comparison support the assertion that the above algorithm yields less accurate results than the other interpolation designs.

关键词： filter design and structures sampling and interpolation signal processing theory and methods

来源：评论

学校读者我要写书评

暂无评论

A method for simultaneously extract the fundamental frequency of a speech signal and segment it

A method for simultaneously extract the fundamental frequenc...

引用

IEEE International Symposium on signal processing and Information Technology

作者： Rossignol, Stephane Collette, Jean-Luc Supelec IMS Res Grp F-57070 Metz France

ISBN: (纸本)9781424435548

This paper deals with the voiced/unvoiced segmentation of natural speech signals and, inside the voiced intervals of these signals, with the determination of the fundamental frequency f(0). Our primary motivation of developing the method presented in this paper is to obtain precise f(0) information, this both in terms of frequency for relatively fast evolving events, and in terms of time location of these frequential events. The use of a first partial enhancement and of the Analytic signal extraction techniques allows this. Comparisons with a standard FFT-based method are provided.

关键词： Speech processing signal processing theory and methods

来源：评论

学校读者我要写书评

暂无评论

Wyner-Ziv coding of three correlated Gaussian sources using punctured turbo codes

Wyner-Ziv coding of three correlated Gaussian sources using ...

引用

5th IEEE International Symposium on signal processing and Information Technology

作者： Lajnef, K Guillemot, C Siohan, P INRIA IRISA F-35042 Rennes France

ISBN: (纸本)0780393139

In this article, we address the problem of distributed coding of three correlated memoryless Gaussian sources using punctured Turbo Codes. We first revisit the problem of distributed coding of two Gaussian sources. The impact of the distortion induced by the quantization of the side information on the performance of Wyner-Ziv decoding of two continuous valued Gaussian correlated sources is analyzed. Theoretic bounds as well as practical coding performances, when the side information is quantized, are given. This leads to the derivation of appropriate settings for the problem of distributed coding of three sources. The Wyner-Ziv theorem is then extended for three sources. Practical solutions using punctured Turbo Codes are described. Simulation results are presented and analyzed for different amounts of correlation.

关键词： data compression distributed source coding Wyner-Ziv theorems punctured turbo codes signal processing theory and methods information processing

来源：评论

学校读者我要写书评

暂无评论

Precise Voicing Information Extraction in Speech signals Using the Analytic signal

Precise Voicing Information Extraction in Speech Signals Usi...

引用

IEEE International Symposium on signal processing and Information Technology

作者： Rossignol, Stephane Pietquin, Olivier Supelec IMS Res Grp F-57070 Metz France

ISBN: (纸本)9781424435548

This paper proposes a voiced - unvoiced measure based on the Analytic signal computation. This voiced - unvoiced feature can be useful for many speech processing applications. For instance, considering speech recognition, it could be incorporated into commonly used acoustic feature vectors, such as for example the Mel Frequency Cepstral Coefficients (MFCC) and their first two derivatives, in order to improve the performance of the overall system. The evaluation of the developed measure has been performed on the TIMIT database. TIMIT has been manually segmented into phones. The voicing information can easily be derived from this segmentation. It is shown in this paper that the automatic voiced - unvoiced segmentation obtained using the method described in the next sections and the manual voiced - unvoiced segmentation provided by TIMIT are very similar.

关键词： Speech processing signal processing theory and methods

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：