2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology最新文献_第6页

C-MRC-based path selection approach for cooperative multihop communications 基于c - mrc的协同多跳通信路径选择方法

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254340

S. Butcharoen, C. Pirak

引用次数: 0

Evaluation of Schottky barrier parameters of Al Schottky contacts on platinum doped n-silicon 掺铂n-硅Al - Schottky触点的肖特基势垒参数评价

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254227

J. Prabket, W. Itthikusaman, A. Poyai

引用次数: 1

Battery capacity of midsize PHEV for different driving schedules 中型插电式混合动力汽车在不同行驶计划下的电池容量

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254304

C. Munyuen, P. Buasri

引用次数: 3

Effects of acoustic mismatches on speech recognition accuracies due to playback-recorded speech corpus 回放录音语音语料库对语音识别精度的影响

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254211

A. Suchato, S. Chanjaradwichai, N. Kertkeidkachorn, S. Vorapatratorn, P. Hirankan, T. Suri, K. Likitsupin, S. Chuetanapinyo, P. Punyabukkana

{"title":"Effects of acoustic mismatches on speech recognition accuracies due to playback-recorded speech corpus","authors":"A. Suchato, S. Chanjaradwichai, N. Kertkeidkachorn, S. Vorapatratorn, P. Hirankan, T. Suri, K. Likitsupin, S. Chuetanapinyo, P. Punyabukkana","doi":"10.1109/ECTICON.2012.6254211","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254211","url":null,"abstract":"Modern speech recognition techniques rely on large amount of speech data whose acoustic characteristics match with the operating environments to train their acoustic models. Gathering training data from loudspeakers playing recorded speech utterances are far more practical than from human speakers. This paper presents results from speech recognition experiments providing practical insights on effects caused by utterances re-recorded form loudspeakers. A clean-speech corpus of sixty human speakers was built using two different microphones and their playbacks were re-recorded. Results show that, with minimal lexical constraints, accuracies degraded for playback-trained system, even with no mismatches between training and test data. However, mismatches did not affect cases with tighter high-level constraints, such as number and limited-vocabulary word recognitions. A procedure to reduce mismatches caused by constructing corpus from playbacks was introduced. The procedure was shown to make the accuracy of a playback-trained system 48% closer to the one of the system trained with speech in matched environment.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"30 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82578127","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

Performance evaluation of Ultra Wideband printed antenna by system characterization 基于系统表征的超宽带印刷天线性能评价

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254150

A. M. J. Marindra, S. Promwong, J. Takada

{"title":"Performance evaluation of Ultra Wideband printed antenna by system characterization","authors":"A. M. J. Marindra, S. Promwong, J. Takada","doi":"10.1109/ECTICON.2012.6254150","DOIUrl":"https://doi.org/10.1109/ECTICON.2012.6254150","url":null,"abstract":"A lot of Ultra Wideband (UWB) antenna designs, especially printed antenna, have been proposed so far. However, among those proposed designs, only single unit antenna analysis i.e. return loss and radiation pattern at particular frequencies are usually observed. This paper reports a deeper transmission analysis by considering UWB antenna as a system; so called system characterization. For a specific case, a pair of UWB printed monopole antenna with known single unit antenna performance was used for this study. Two-identical-antenna system was measured with Vector Network Analyzer (VNA), then its system transfer function, group delay, and waveform distortion are investigated. The results show that even the single unit antenna performance looks good enough but not so that well when the antenna is considered as a system. Nonlinear transfer function and group delay at some frequency ranges inflicts distortion in the waveform transmission which is crucial for UWB impulse radio scheme. Antenna performance evaluation in this study is provided in the term of its distortion by showing pattern of correlation between the transmitted and the received waveform.","PeriodicalId":6319,"journal":{"name":"2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology","volume":"20 4 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2012-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81050733","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: 2

Investigated gain and radiation pattern of array antenna with asymmetric y-shaped slit loads MSA 研究了非对称y型狭缝加载MSA阵列天线的增益和辐射方向图

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254265

U. Kongmuang, R. Wongsan

引用次数: 1

Redundant operation with a distributed control for a modular three-phase AC/DC converter 冗余操作与分布式控制的模块化三相AC/DC转换器

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254184

Y. Kanthaphayao, U. Kamnarn, V. Chunkag

引用次数: 0

Total transfer capability enhancement with optimal number of UPFC using hybrid TSSA 基于混合TSSA的优化UPFC数量的总传输能力增强

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254218

S. Chansareewittaya, P. Jirapong

引用次数: 10

Inventory management for high voltage equipment using statistical distribution techniques 用统计分布技术对高压设备进行库存管理

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254241

T. Suwanasri, C. Suwanasri

引用次数: 1

A new soft single switch step-up DC-DC converter 一种新型软单开关升压DC-DC变换器

2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology Pub Date : 2012-05-16 DOI: 10.1109/ECTICON.2012.6254129

M. Akbari, M. Delshad

引用次数: 1