2014 International Telecommunications Symposium (ITS)最新文献

A new map for chaotic communication 混沌通信的新地图

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947959

D. Chaves, Carlos E. C. Souza, C. Pimentel

引用次数: 3

Digital radio over fiber transmission based on SCM and WDM system for C-RAN architecture 基于单片机和WDM系统的C-RAN结构的光纤数字无线电传输

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947987

R. P. Almeida, R. S. Oliveira, N. S. Moritsuka, C. Francês, A. Teixeira, J. W. A. Costa

引用次数: 10

Speech intelligibility measures for speech enhancement under nonstationary acoustic noise 非平稳噪声下语音清晰度增强的方法

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6948048

R. Tavares, L. Zão, R. Coelho

引用次数: 0

A method for the extraction of phonetically-rich triphone sentences 一种提取语音丰富的三音句的方法

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947957

Gustavo Mendonça, Sara Candeias, F. Perdigão, C. Shulby, Rean Toniazzo, A. Klautau, S. Aluísio

引用次数: 13

Enhanced motion cues for automatic depth extraction for 2D-to-3D video conversion 增强运动线索自动深度提取2d到3d视频转换

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947992

Gustavo Alves, Eduardo A. B. da Silva

引用次数: 1

Throughput of wireless networks with Poisson distributed nodes using location information 使用位置信息的泊松分布节点无线网络的吞吐量

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6948051

P. Nardelli, Carlos H. M. de Lima, H. Alves, P. Cardieri, M. Latva-aho

引用次数: 1

Improved cryptanalysis combining differential and artificial neural network schemes 结合差分和人工神经网络方案的改进密码分析

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6948008

Moisés Danziger, Marco Aurelio Amaral Henriques

引用次数: 18

Evaluating multipath routing protocols to improve video transmission for precision agriculture 评估多路径路由协议以改善精准农业的视频传输

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947996

Thiago Marques Sousa, Cintia Borges Margi, Regina Melo Silveira, Bruno Carvalho Albertini, A. Saraiva

引用次数: 0

A proposal for clock reference correction in MPEG-2 transport stream processors MPEG-2传输流处理器中时钟参考校正的建议

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947961

Bruno C. de Farias, E. B. de Lima Filho, E. Bezerra

{"title":"A proposal for clock reference correction in MPEG-2 transport stream processors","authors":"Bruno C. de Farias, E. B. de Lima Filho, E. Bezerra","doi":"10.1109/ITS.2014.6947961","DOIUrl":"https://doi.org/10.1109/ITS.2014.6947961","url":null,"abstract":"The transport stream is a standard format commonly used in digital TV systems for conveying audio, video and program-related information. Among other data, transport streams also encapsulate a timing reference, known as program clock reference, which is a snapshot of the 27 MHz system clock. This information allows clock recovery in receivers, which provides correct content presentation and even drives output interfaces. However, if arrival times of transport packets change during transmission or processing, such a scenario may lead to system clock errors, which is known as jitter. Traditional methods for correcting the program clock reference information are normally based on 27 MHz counters/floating-point accumulators and do not completely mitigate jitter. More recent methods use a semaphore-controlled counter/accumulator and even propose a joint adaptation and clock reference correction, which result in a reduced number of operations and low jitter levels at the output, respectively. Nevertheless, there is no study concerning the implementation of semaphore-controlled methods in transport stream processors. Given that, the present work proposes an implementation methodology for field-programmable gate arrays, using hardware description language. The related results validate the use of semaphore-controlled methods and show that the proposed methodology is effective, with the benefit of avoiding metastability effects.","PeriodicalId":359348,"journal":{"name":"2014 International Telecommunications Symposium (ITS)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124422903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discrete approach to electrical resistance tomography with applications to distributed network sensing 电阻层析成像的离散方法及其在分布式网络传感中的应用

2014 International Telecommunications Symposium (ITS) Pub Date : 2014-11-06 DOI: 10.1109/ITS.2014.6947988

Frederico M. Aguiar, D. Pipa, M. D. da Silva

{"title":"Discrete approach to electrical resistance tomography with applications to distributed network sensing","authors":"Frederico M. Aguiar, D. Pipa, M. D. da Silva","doi":"10.1109/ITS.2014.6947988","DOIUrl":"https://doi.org/10.1109/ITS.2014.6947988","url":null,"abstract":"Most of electrical resistance tomography literature is aimed at biomedical application, where one wishes to estimate the conductivity distribution of some portion of human body in order to detect some health disorder. The solution to this problem often starts considering a continuous media, which requires subsequent discretization through finite element simulations or other sophisticated methods. In this paper, we propose an alternative and purely discrete approach. We pose the problem as a resistor grid, or network, of which only the peripheral elements are accessible for measurements. By injecting known electrical current externally, we want to estimate all the conductances of the network given only boundary voltage measurements. Since the relation between conductance values and voltage measurement is nonlinear, we present two solutions to the problem: one based on iterative linearization and another based on neural network, which solves the problem directly in the nonlinear domain. Finally, we present simulated experiments to demonstrate the viability of the proposed approach and highlight possible applications of the developed technique.","PeriodicalId":359348,"journal":{"name":"2014 International Telecommunications Symposium (ITS)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124423945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1