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Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.最新文献

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Robust sliding mode control for robot manipulator tracking problem using a proportional-integral switching surface 基于比例积分切换曲面的机器人机械手跟踪鲁棒滑模控制
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-26 DOI: 10.1109/SCORED.2003.1459658
M.N. Ahmad, J. Osman
{"title":"Robust sliding mode control for robot manipulator tracking problem using a proportional-integral switching surface","authors":"M.N. Ahmad, J. Osman","doi":"10.1109/SCORED.2003.1459658","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459658","url":null,"abstract":"This paper presents the development of a proportional-integral sliding mode controller for tracking problem of robot manipulators. A robust sliding mode controller is derived so that the actual trajectory tracks the desired trajectory as closely as possible despite the highly non-linear and coupled dynamics. The proportional-integral sliding mode is chosen to ensure the stability of the overall dynamics during the entire period i.e. the reaching phase and the sliding phase. Application to a two-link planar robot manipulator is presented.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114767988","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: 7
Development of cellular IPV6 testbed 蜂窝IPV6测试平台的开发
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459671
Low Chee Sing, M. Ismail, K. Jumari, K. Anuar
{"title":"Development of cellular IPV6 testbed","authors":"Low Chee Sing, M. Ismail, K. Jumari, K. Anuar","doi":"10.1109/SCORED.2003.1459671","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459671","url":null,"abstract":"This paper highlights the differences between MIPv6 and CIPv6. An overview some basic features and implementation of cellular IPv6 (CIPv6), a mobility protocol optimised for wireless access network and highly mobile hosts is discussed. CIPv6 is designed based on three goals: simplicity, scalability and performance scalability. A CIPv6 testbed has been set-up and some performance parameters such as handoff performance, handoff delay and packet loss were evaluated.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124686181","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
Comparing speech compression using wavelets with other speech compression schemes 将小波语音压缩与其他语音压缩方案进行比较
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459663
Abdulmawla M. A. Najih, A. Ramli, A. Ibrahim, A. Syed
{"title":"Comparing speech compression using wavelets with other speech compression schemes","authors":"Abdulmawla M. A. Najih, A. Ramli, A. Ibrahim, A. Syed","doi":"10.1109/SCORED.2003.1459663","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459663","url":null,"abstract":"Speech compression is one area of digital signal processing that focuses on reducing the bit rate of the speech signal for transmission or storage without significant loss of quality. In recent years a new technique called wavelet transform has been proposed for signal analysis. It has been successfully used in image compression application. So far, less attention has been paid to the research in the speech compression using wavelet. This paper attempts to evaluate the wavelet compression technique on speech signals. Different wavelet filters were used to select the best filter suitable for speech signal in providing low bit rate and low computation complexity. Our implementation was evaluated based on PSNR, SNR, NRMSE and compression ratio tested on 8 kHz 8-bit speech signals. This algorithm was also compared to the following speech compression schemes: linear predictive coding (LPC) which reduces the transmitted data by factor of more than twelve, and global system mobile (GSM) which reduces the transmitted data by factor of five As a result from this study, wavelet speech compression gives higher SNR and better speech quality than the other techniques.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125573986","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: 21
Towards an optimal feature subset selection 向最优特征子集选择方向发展
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459726
O. A. Shiba, W. Saeed, M. Sulaiman, F. Ahmad, A. Mamat
{"title":"Towards an optimal feature subset selection","authors":"O. A. Shiba, W. Saeed, M. Sulaiman, F. Ahmad, A. Mamat","doi":"10.1109/SCORED.2003.1459726","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459726","url":null,"abstract":"The problem of feature selection is fundamental in a number of different tasks like classification, data mining, image processing, conceptual learning, etc. In recent times, the growing importance of knowledge discovery and data-mining approaches in practical applications has made the feature selection problem a quite hot topic. Choosing a subset of the features may increase accuracy and reduce complexity of the acquired knowledge. This paper, proposes a new feature subset selection approach by using slicing techniques, which was originally proposed for programming languages. Slicing means that we are interested in automatically obtaining that portion 'features' of the case responsible for specific parts of the solution of the case at hand. The paper presented the proposed approach based on slicing techniques improved the feature subset selection for classification task in data mining.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129420366","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
Analysis of the keyframe animation and motion capture case studies 分析关键帧动画和动作捕捉的案例研究
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459688
M. Izani, Aishah, A. Eshaq, Norzaiha
{"title":"Analysis of the keyframe animation and motion capture case studies","authors":"M. Izani, Aishah, A. Eshaq, Norzaiha","doi":"10.1109/SCORED.2003.1459688","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459688","url":null,"abstract":"Traditionally animation is produced by drawing illusion of movement created by photographing a series of individual drawings on successive frames on film. Greenberg (1997) explains, \"Animation is a deliberately interpreted \"illusion of life.\" It has been practiced for the last 70 years in both drawn and stop motion animation, and as such, is not an attempt to mimic human and animal life exactly.\" According to the historical timeline, there are many forms of animation that have been introduced. This includes cel animation, clay animation, stop frame animation, three dimensional (3D) computer animation and virtual reality. With the rapid growth of this industry, various types of techniques, methodologies and computer technologies have been developed, for instance the keyframe animation, non-linear animation, motion capture, procedural animation and etc. Generally there are two popular methods in producing computer animation; keyframe animation and motion capture. Both have their own adherents. The authors believe that this research is important to reveal the actual process and its advantages/disadvantages for animation production. The findings and discussions would be useful for production guidelines, especially in making decision to choose the right method.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129457093","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
A block coded amplitude clipping and filtering for peak-to-average power ratio in orthogonal frequency division multiplexing system 正交频分复用系统中峰均功率比的分块编码削幅滤波
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459674
S. Yusof, N. Fisal, U. Kannan, Y.H. Wong
{"title":"A block coded amplitude clipping and filtering for peak-to-average power ratio in orthogonal frequency division multiplexing system","authors":"S. Yusof, N. Fisal, U. Kannan, Y.H. Wong","doi":"10.1109/SCORED.2003.1459674","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459674","url":null,"abstract":"One of the major setbacks of orthogonal frequency multiplexing (OFDM) is its peak-to-average power ratio (PAPR). In this paper, an investigation of block coded amplitude clipping and filtering method to reduce further the PAPR in OFDM system is presented. The BER performance of this method is also analyzed. It is shown through simulation that the block coded amplitude clipping and filtering method improves the PAPR and BER performance as compared to a block coding technique.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129287285","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
Validation of the power electronics design aid system (PEDAS) 电力电子辅助设计系统(PEDAS)验证
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459709
B. Omrane, N. Mariun, S. Mahmoud, I. Aris, S. Taib
{"title":"Validation of the power electronics design aid system (PEDAS)","authors":"B. Omrane, N. Mariun, S. Mahmoud, I. Aris, S. Taib","doi":"10.1109/SCORED.2003.1459709","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459709","url":null,"abstract":"PEDAS is an acronym of a knowledge-based power electronics design aid system developed in the EEE department at UPM, The concept and development of this system was discussed in several previous works as shown in references. In this paper the validity theme of PEDAS is addressed and then the validation and verification process through some simulation examples is conducted. The hardware validation example is left to next stage upon completing and finalising its results.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124376878","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
Indirect detection of multi-wave length for infrared wireless communications in the room and public area services 间接探测多波长红外无线通信，用于房间和公共区域的服务
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459715
S. Sudkaew, J. Sartthong, S. Noppanakeepong, A. Manyanon
{"title":"Indirect detection of multi-wave length for infrared wireless communications in the room and public area services","authors":"S. Sudkaew, J. Sartthong, S. Noppanakeepong, A. Manyanon","doi":"10.1109/SCORED.2003.1459715","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459715","url":null,"abstract":"In this paper, optical multi-wavelength modulation is proposed to reduce the effects of intersymbol interference (ISI) on the artificial light noise and multi path channels. The noise model in the room is the additive white Gaussian noise (AWGN), and multi wavelength optical modulation schemes are used for on off keying (OOK). An infrareds link in the room or public area services used intensity modulation and direct detection (IM/DD). The normal room and some interior in this case are used to study the obstruction and the reflex effect to the communications speed rate at 10-100 Mbps. Finally each performance of BER per transmitted light power of multi-wavelength infrared system is compared. The carrier characteristic of multi-wavelength is improved to be same as RF-carriers on mobiles applications.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134368217","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 black box for moving vehicle warning system 移动车辆预警系统黑匣子的设计
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459691
Ngo Chon Chet
{"title":"Design of black box for moving vehicle warning system","authors":"Ngo Chon Chet","doi":"10.1109/SCORED.2003.1459691","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459691","url":null,"abstract":"The project presented here shows the design of black box for warning system in moving vehicle exceeding speed limits. This system consists of three main parts, namely speed sensor, micro controller and alarm system. The main function of the black box is to monitor vehicle speed and it gives a warning when the speed limit is exceeded. It can be installed in any type of motor vehicle and does not affect the operation of the vehicle after its installation. The input to the black box is same vehicle speed signal (VSS) used by the vehicle speedometer. The system has been designed using Maxplus-II software and programmable logic device (PLD). The whole black box system is developed and it is tested using signal generator in laboratory. Since the system is designed with digital logic and is based on programmable logic device, the output of the black box responds quickly with the change in input signal.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133858098","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: 14
PAPR reduction in WLAN-OFDM system using code repetition technique 用重复码技术降低WLAN-OFDM系统的PAPR
Proceedings. Student Conference on Research and Development, 2003. SCORED 2003. Pub Date : 2003-08-25 DOI: 10.1109/SCORED.2003.1459669
N. Ngajikin, N. Fisal, S. Yusof
{"title":"PAPR reduction in WLAN-OFDM system using code repetition technique","authors":"N. Ngajikin, N. Fisal, S. Yusof","doi":"10.1109/SCORED.2003.1459669","DOIUrl":"https://doi.org/10.1109/SCORED.2003.1459669","url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) is the best choice to achieve high data rate transmission in wireless environment. OFDM system shows many favorable property such as high spectral efficiency, robustness to channel fading and immunity to impulse interference. However, there are some obstacles in using OFDM in transmission system, which is in contrast to its advantages. One of the major drawbacks is a very high peak to average power ratio (PAPR) of the OFDM signals. Therefore this paper analyzes the capability of code repetition (CR) to reduce PAPR in WLAN/OFDM system. The analysis is on a network model designed by WLAN 802.11a standard using Matlab, a mathematical simulation software tool. The network model has been simulated in AWGN channel environment to investigate the behavior of PAPR and BER performance. The proposed technique to reduce PAPR in the WLAN/OFDM channel coding consists of two part; convolutional code and CR. Simulation model with different number of repetition has been analyzed and the results were compared with the conventional coded OFDM (COFDM). The simulation results show that the proposed technique based on CR reduces PAPR down to 5 dB compared to COFDM model.","PeriodicalId":239300,"journal":{"name":"Proceedings. Student Conference on Research and Development, 2003. SCORED 2003.","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124321309","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: 9
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