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2004 IEEE Region 10 Conference TENCON 2004.最新文献

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Robust adaptive fuzzy control for a class of uncertain servomechanism systems 一类不确定伺服机构系统的鲁棒自适应模糊控制
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414979
U. Komin, S. Phoojaruenchanachai, S. Chatratana, S. Kuntanapreeda
{"title":"Robust adaptive fuzzy control for a class of uncertain servomechanism systems","authors":"U. Komin, S. Phoojaruenchanachai, S. Chatratana, S. Kuntanapreeda","doi":"10.1109/TENCON.2004.1414979","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414979","url":null,"abstract":"In this paper an adaptive fuzzy control technique is presented for a class of uncertain mechanical systems. The uncertainties are mainly caused by mechanical friction and unbalanced load. The fuzzy logic system is employed to compensate the effect of the friction and the unbalanced load. The technique does not require a complete mathematical model or a priori knowledge about the system structure. By combining with a sliding mode control strategy, the adaptive fuzzy controller guarantees the stability of the closed loop system as well as the convergence of tracking errors. In this work we also constructed an actual mechanical plant to test the performance of the designed controller. Experimental results verify that the dynamic behaviors of the proposed control systems are robust with regarding to uncertainties and significantly improve tracking accuracy over a conventional adaptive PD controller.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123974099","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
An isolated speech endpoint detector using multiple speech features 一个孤立的语音端点检测器使用多个语音特征
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414617
A.M. Ahmad, G. K. Eng, A. M. Shaharoun, T.C. Yeek, M. Jarni
{"title":"An isolated speech endpoint detector using multiple speech features","authors":"A.M. Ahmad, G. K. Eng, A. M. Shaharoun, T.C. Yeek, M. Jarni","doi":"10.1109/TENCON.2004.1414617","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414617","url":null,"abstract":"Energy and zero crossing rate of the speech signal have been the two most widely used features for detecting the endpoints of an utterance. This paper proposed a new approach for locating the endpoint for isolated speech, which significantly improve the endpoint detector performance. The proposed algorithm relies on multiple speech features: root mean square energy (rmse), zero crossing rate (zcr) and cepstral coefficient (cepstrum) where the Euclidean distance measure is adopted to accurately detect the endpoint of an isolated utterance. This algorithm offers better performance than conventional algorithm which using energy only. The vocabulary for the experiment includes English digit from 1 to 9. These experimental results were conducted by 360 utterances from a male speaker. Experimental results show that the accuracy of the algorithm is quite acceptable.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123978263","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: 3
An optimized algorithm for computing the modified discrete cosine transform and its inverse transform 一种计算修正离散余弦变换及其逆变换的优化算法
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414498
Yang-Ki Cho, Tae-Hoon Song, Hi-Seok Kim
{"title":"An optimized algorithm for computing the modified discrete cosine transform and its inverse transform","authors":"Yang-Ki Cho, Tae-Hoon Song, Hi-Seok Kim","doi":"10.1109/TENCON.2004.1414498","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414498","url":null,"abstract":"This paper presents an optimized algorithm for the modified discrete cosine transform (MDCT) and its inverse transform (IMDCT) computation in MPEG audio. The proposed algorithm is based on the DCT of type II (DCT-II). By extracting a common kernel form from the MDCT and IMDCT, we can obtain an optimized computation of the MDCT and the IMDCT using a unified structure. Also, our proposed structure is more symmetrical and simple than those of the existing researches. Proposed algorithm is, moreover, very useful in implementing the parallel VLSI system structure of the MDCT and IMDCT.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"46 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125880941","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: 16
Applying performance evaluation to large-scale contents delivery system 性能评价在大型内容传送系统中的应用
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414523
T. Shiroshita, Y. Nakamura, T. Nagata, S. Kinoshita
{"title":"Applying performance evaluation to large-scale contents delivery system","authors":"T. Shiroshita, Y. Nakamura, T. Nagata, S. Kinoshita","doi":"10.1109/TENCON.2004.1414523","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414523","url":null,"abstract":"Reliable multicast has been applied to large-scale contents delivery systems for distributing digital contents to a large number of users without data loss. Performance evaluation of reliable multicast is useful for delivery time estimation in active delivery systems as well as for designing communication protocols and systems. This paper shows the performance estimation scheme for RMTP; a reliable multicast protocol for bulk-data transfer and applies it to the scheduling function in megacast; a contents delivery system for large numbers of receiver. Some performance characteristics of RMTP are also examined.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124816676","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
Inductive temporal formula specifications 归纳时间公式规范
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414526
C. Yamada, Y. Nagata, Z. Nakao
{"title":"Inductive temporal formula specifications","authors":"C. Yamada, Y. Nagata, Z. Nakao","doi":"10.1109/TENCON.2004.1414526","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414526","url":null,"abstract":"Design verification has played an important role in the design of large scale and complex systems. In this article, we focus on model checking methods. Behaviors of modeled systems are in general specified in terms of temporal formulas of computation tree logic and users must have enough knowledge of temporal specification because the specification might be complex. We propose a method through which temporal formulas are obtained inductively and amounts of required memory and time are reduced. We will show verification results which are obtained by the proposed method.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125016055","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
A scheme for reconstructing height of 3D terrain map from shading of a multi-spectral band satellite image 一种基于多光谱波段卫星影像底纹重建三维地形图高度的方案
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414444
B. Damrongwatthanayothin, A. Roeksabutr, S. Jantarang
{"title":"A scheme for reconstructing height of 3D terrain map from shading of a multi-spectral band satellite image","authors":"B. Damrongwatthanayothin, A. Roeksabutr, S. Jantarang","doi":"10.1109/TENCON.2004.1414444","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414444","url":null,"abstract":"This paper proposes a technique for creating a 3D terrain map from gray scale image. This technique is accomplished by using the principle of light and shadow in terms of azimuth, elevation angle and light path to locate the actual position of shadow on the image. The shading area is approximated from the group of image data itself and the line of shadow is focused from the azimuth angle. The unwanted shadow is found for subtraction out of the shading to attain the actual shadow of an object. The object height is simply calculated from the elevation angle. The bilinear algorithm is applied to smooth the geographical surface. The reconstruction of terrain map shows good result with little error.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128718003","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
An efficient method for segmentation step of automated white blood cell classifications 一种有效的白细胞自动分类分割步骤方法
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414389
J. Theerapattanakul, J. Plodpai, C. Pintavirooj
{"title":"An efficient method for segmentation step of automated white blood cell classifications","authors":"J. Theerapattanakul, J. Plodpai, C. Pintavirooj","doi":"10.1109/TENCON.2004.1414389","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414389","url":null,"abstract":"The differential white blood cell count plays an important role in the diagnosis of different diseases. It is a tedious task to count these classes of cell manually. An automatic counter using computer vision helps to perform this medical test rapidly and accurately. Most commercial-available automatic white blood cell analysis composed mainly 3 steps including segmentation, feature extraction and classification. In this paper we concentrate on the first step in automatic white-blood-cell analysis by proposing a segmentation scheme that utilizes a benefit of active contour. Specifically, the binary image is obtained by thresholding of the input blood smear image. The initial shape of snake is then placed roughly inside the white blood cell and allowed to grow to fit the shape of individual white blood cell. The white blood cell is then separated using the extracted contour. Our purposed technique can handle very promising to separate the remaining red blood cells.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128579353","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: 37
Active noise cancellation with TMS320C5402 DSP starter kit 主动噪声消除与TMS320C5402 DSP入门套件
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414505
F. Nagi, J. Low SK, Seet Li
{"title":"Active noise cancellation with TMS320C5402 DSP starter kit","authors":"F. Nagi, J. Low SK, Seet Li","doi":"10.1109/TENCON.2004.1414505","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414505","url":null,"abstract":"The paper describes the use TMS320C5402 DSP for single channel active noise cancellation (ANC) in duct system. The canceller uses a feedback control topology and is designed to cancel narrowband periodic tones. The signal is processed with well-known filtered-X least mean square (filtered-X LMS) Algorithm in the digital signal processing. The paper describes the hardware and use chip support libraries for data streaming. The FXLMS algorithm is written in assembly language callable from C main program. The results obtained are compatible to the expected result in the literature available. The paper highlights the features of cancellation and analyzes its performance at different gain and frequency.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127391759","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: 8
The two-path algorithm for line echo cancellation 线回波消除的双路径算法
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414501
F. Lindstrom, M. Dam, I. Claesson
{"title":"The two-path algorithm for line echo cancellation","authors":"F. Lindstrom, M. Dam, I. Claesson","doi":"10.1109/TENCON.2004.1414501","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414501","url":null,"abstract":"The two-path algorithm is an algorithm for line echo cancellation based on two parallel filters. This paper proposes a modification of the two-path algorithm that improves its performance. In the two-path algorithm a background filter is used for continuously adaptive estimation of the line echo, while a foreground filter is used for the actual cancellation. The coefficients of the background filter are copied into the foreground filter when the background filter is proven to perform better. A robust algorithm for line echo cancellation is thereby achieved. In this paper, the benefits and the drawbacks of the two-path algorithm are evaluated and demonstrated through simulations. A modification is proposed that reduces the negative effects of the two-path algorithm. This modification is compared to the original two-path algorithm. Simulations using real speech signals indicate that the proposed modification can improve the performance of the two-path algorithm.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127446890","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: 8
The design of the multiplexing data acquisition and monitoring system for magnetocardiography (MCG) 心磁图(MCG)复用数据采集与监测系统的设计
2004 IEEE Region 10 Conference TENCON 2004. Pub Date : 2004-11-21 DOI: 10.1109/TENCON.2004.1414839
W. Chang, C. I. Jeon, Yang-Ha Park, Sung-Kuk Yang, S. Oh, Y. Huh
{"title":"The design of the multiplexing data acquisition and monitoring system for magnetocardiography (MCG)","authors":"W. Chang, C. I. Jeon, Yang-Ha Park, Sung-Kuk Yang, S. Oh, Y. Huh","doi":"10.1109/TENCON.2004.1414839","DOIUrl":"https://doi.org/10.1109/TENCON.2004.1414839","url":null,"abstract":"The electrical current generated by heart creates not only electric potential but also a magnetic field. In this paper, we have designed the multiplexing data acquisition system for multi-channel bio-magnetic signal measurement. The system consists of VXI rack that is organized MUX and AD board, industrial rack that is mounted single board computer and DSP board. This system enables to real time monitoring of multi-channel data simultaneously. The number of channel could be increased simply added each module and firmware could be upgraded easily using host port interface of DSP.","PeriodicalId":434986,"journal":{"name":"2004 IEEE Region 10 Conference TENCON 2004.","volume":"C 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129990696","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
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