发布求助
文献互助 智能选刊 最新文献

2008 International Symposium on Communications and Information Technologies最新文献

筛选
英文 中文
Audio Noise Classification using Bark scale features and K-NN Technique 基于树皮尺度特征和K-NN技术的音频噪声分类
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700168
C. Eamdeelerd, K. Songwatana
{"title":"Audio Noise Classification using Bark scale features and K-NN Technique","authors":"C. Eamdeelerd, K. Songwatana","doi":"10.1109/ISCIT.2008.4700168","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700168","url":null,"abstract":"This paper presents the audio noise classification using Bark scale features and K-NN technique. This paper uses audio noise signal from NOISEX-92 (12 types). We determine the transfer functions from linear predictive coding (LPC) coefficient of noise signal on Bark scale and use K-NN technique to classify them. The results will be used for optimization of speech recognition model in the presence of noise. The highest average accuracy for audio noise classification is obtained when K=3 and median over 5 consecutive frames.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131874942","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: 6
An Electronically Controllable Voltage-mode First-order All-Pass Filter Using Only Single CCCDTA 一种仅使用单个CCCDTA的电子可控电压模式一阶全通滤波器
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700203
C. Tanaphatsiri, W. Jaikla, M. Siripruchyanun
{"title":"An Electronically Controllable Voltage-mode First-order All-Pass Filter Using Only Single CCCDTA","authors":"C. Tanaphatsiri, W. Jaikla, M. Siripruchyanun","doi":"10.1109/ISCIT.2008.4700203","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700203","url":null,"abstract":"This article presents a voltage-mode first-order all-pass filter based on merely single current controlled current differencing transconductance amplifiers (CCCDTA). The features of the circuit are that: the pole frequency can be electronically controlled via the input bias current: the circuit description is very simple, consisting of merely single CCCDTA and single capacitor, without any matching condition constraint. Consequently, the proposed circuit is very appropriate to further develop into an integrated circuit. The PSPICE simulation results are depicted. The given results agree well with the theoretical anticipation. The power consumption is approximately 1.01 mW at plusmn 1.5 V power supply voltages. The application example as a quadrature oscillator is included.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132046391","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: 23
A Novel Channel Estimator for Uplink MC-CDMA Systems 一种新的上行链路MC-CDMA信道估计方法
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700198
Feifei Wang, Siyang Liu, Xiaofeng Lin, Yuan’an Liu, B. Tang
{"title":"A Novel Channel Estimator for Uplink MC-CDMA Systems","authors":"Feifei Wang, Siyang Liu, Xiaofeng Lin, Yuan’an Liu, B. Tang","doi":"10.1109/ISCIT.2008.4700198","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700198","url":null,"abstract":"We develop a novel channel estimation technique for uplink multicarrier code division multiple access (MC-CDMA) systems in this paper. First, the pilot strategy to effectively shift multiple channels into non-overlapped regions is employed. Second, the proposed scheme estimates the channel parameters including the number of channel taps and multipath time delays via Hannan-Quinn (HQ) criterion. Third, with the help of the estimated channel parameters, channel impulse response can be estimated more accurately. A major contribution of the proposed scheme is that it enables robust performance, and is computationally more efficient compared with the previous counterparts. Finally, the expected results are verified through computer simulation.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122346796","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
Control of Vehicle Driving Model By Non-linear Controller 非线性控制器对车辆行驶模型的控制
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700221
M. Mubin, S. Ouchi, N. Kodani, N. Mokhtar, H. Arof
{"title":"Control of Vehicle Driving Model By Non-linear Controller","authors":"M. Mubin, S. Ouchi, N. Kodani, N. Mokhtar, H. Arof","doi":"10.1109/ISCIT.2008.4700221","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700221","url":null,"abstract":"A new drive control system which has an effect on controlling the vehicle slip during accelerating and braking is proposed in this paper. This drive control system uses a non-linear controller designed by following the Lyapunov theorem. The controller is designed in order that it can work at both conditions that is the slippery and non-slippery road. The effectiveness of this control system is proved by a basic experiments.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127385594","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
English-Thai Machine Translation in a Lexicalist Grammar 英汉泰语机器翻译的词汇学语法研究
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700176
P. Chitwirat, N. Facundes, B. Sirinaovakul
{"title":"English-Thai Machine Translation in a Lexicalist Grammar","authors":"P. Chitwirat, N. Facundes, B. Sirinaovakul","doi":"10.1109/ISCIT.2008.4700176","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700176","url":null,"abstract":"In this research, we develop a machine translation (MT) system to translate useful phrases in tourism domain from English to Thai. We exploit the transfer-based approach within the theoretical framework of head-driven phrase structure grammar (HPSG) and a relevant semantic theory, minimal recursion semantics (MRS). The theories are chosen due to their robust computational capabilities. Our MT system is lexicalist in the sense that the semantic transfer takes place at the word level while HPSG ensures deep analyses of source and target languages.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121218275","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
Design of Convert System from Negative Feelings Information to Positive Feelings Information 消极情绪信息向积极情绪信息转换系统的设计
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700231
H. Kitamura, T. Noji, M. Ariño
{"title":"Design of Convert System from Negative Feelings Information to Positive Feelings Information","authors":"H. Kitamura, T. Noji, M. Ariño","doi":"10.1109/ISCIT.2008.4700231","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700231","url":null,"abstract":"Employee's personnel management system is important in the corporate strategy. However, a present personnel management system is strongly colored by the payroll accounting and the personal management, and doesn't necessarily widely support a personnel business. Then, we use negative feelings information system that appropriates the focus to negative feelings information system of the employee, collects negative feelings information system of the employee in the conceptual schema (input), converts the processed negative feelings information data into positive feelings information, and outputs it. The recognition database of negative feelings information system was constructed by using the database for the recognition system of negative feelings information. Three kinds of data is converted into three kinds of positive feelings information on the sight (color) that is senses, sense of smell (fragrance), and aural (music) in this text and outputs. In the evaluation in the effect verification, employee's self-stress management can be done, the workplace environment be improved, and the improvement of the work efficiency and productivity be expected.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116261046","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
Electronically Tunable Voltage-Mode All-Pass Filter Using Simple CMOS OTAs 使用简单CMOS ota的电子可调谐电压模式全通滤波器
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700250
M. Kumngern, J. Chanwutitum, K. Dejhan
{"title":"Electronically Tunable Voltage-Mode All-Pass Filter Using Simple CMOS OTAs","authors":"M. Kumngern, J. Chanwutitum, K. Dejhan","doi":"10.1109/ISCIT.2008.4700250","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700250","url":null,"abstract":"A new high input impedance electronically tunable voltage-mode first-order all-pass filter using three simple CMOS operational transconductance amplifiers (OTAs) and one grounded capacitor is presented. The corner frequency can be controlled electronically by adjusting the bias currents of OTAs. Critical component matching conditions are not required in the design. The use of a grounded capacitor and without resistor makes the proposed circuits ideal for integrated circuit implementation. The characteristics of the proposed circuit are simulated using PSPICE to verify the theory.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116358493","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: 11
Rainfall Rate and Rain Attenuation Model in Bangkok Thailand 泰国曼谷的降雨率和雨衰减模式
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700202
N. Chankeaw, P. Udomariyasap, D. Lakanchanh, S. Noppanakeepong, N. Leelaruji
{"title":"Rainfall Rate and Rain Attenuation Model in Bangkok Thailand","authors":"N. Chankeaw, P. Udomariyasap, D. Lakanchanh, S. Noppanakeepong, N. Leelaruji","doi":"10.1109/ISCIT.2008.4700202","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700202","url":null,"abstract":"This paper describes the measurement of rainfall rate at King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok, Thailand, by using satellite signal from Thaicom5. Three years measurement of rainfall rate are presented. The experimental results indicate that the measured rainfall rate are 90mm/hr in 2005, 94 mm/hr in 2006 and 102 mm/hr in 2007. Moreover, we have developed new modify prediction model of rain attenuation by ITU-R rain attenuation model. The model provides for prediction of annual and for expected year to year variations. This model applied to collecte data compared with ITU-R model. From the results of prediction model at KMITL, we found that the highest rainfall rate 102 mm/hr in 2007 cause to signal attenuate 14.34 dB.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114471222","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
DTIA: Differentiated Traffic-based Interconnection Agreement DTIA:差异化流量互联协议
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700279
Ruzana Davoyan
{"title":"DTIA: Differentiated Traffic-based Interconnection Agreement","authors":"Ruzana Davoyan","doi":"10.1109/ISCIT.2008.4700279","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700279","url":null,"abstract":"This paper presents a new model, called differentiated traffic-based interconnection agreement (DTIA) for reciprocal compensation between providers. In particular the model aims to achieve the twofold goal of i) determination of an original initiator of transmission, and ii) compensation of the interconnection costs. For that purpose, traffic is differentiated into two types, called native and stranger. In comparison to the existing financial settlement, under which the payments are based on the net traffic flows, the proposed model governs cost compensation according to the differentiated traffic flows. Besides, we describe a traffic management mechanism that supports the proposed traffic differentiation approach. Analytical studies were provided using Nash bargaining solution to investigate how the interconnection payments between providers depend on the presented approach.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115204455","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: 4
An Ad Hoc Network for the Communication Infrastructure in Pastureland 牧场通信基础设施的自组织网络
2008 International Symposium on Communications and Information Technologies Pub Date : 2008-12-08 DOI: 10.1109/ISCIT.2008.4700149
B. Chinbaatar, C. Purevsuren, T. Yamada
{"title":"An Ad Hoc Network for the Communication Infrastructure in Pastureland","authors":"B. Chinbaatar, C. Purevsuren, T. Yamada","doi":"10.1109/ISCIT.2008.4700149","DOIUrl":"https://doi.org/10.1109/ISCIT.2008.4700149","url":null,"abstract":"People and businesses in today's world have been becoming dependent on universal communication services and the Internet more and more. Remote rural areas of Mongolia are not exception. This paper presents a pastureland ad hoc network to provide low cost communication services to those rural areas. The pastureland network serves two types of different user's areas which are categorized by node density and mobility of users; one is small settlement (Soum area) and the other is open areas settled by nomadic herders (Pastureland). Two main services - internet access and voice service are considered to be used. Each of them requires different destination patterns and session generation rate. Therefore, if either proactive or reactive routing is applied in pastureland network they will cause high control overhead. To overcome this advantage, we propose a hybrid routing method optimized to conditions of such a network. This hybrid method implements proactive routing to proxy nodes and depending on destination distance, it routes voice traffic through reactive path or hierarchical path. For selection of the hierarchical path and reactive path, SIP signaling is used. General analysis shows that our hybrid routing method has lower control overhead than the reactive routing in pastureland network environment.","PeriodicalId":215340,"journal":{"name":"2008 International Symposium on Communications and Information Technologies","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125860440","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
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信