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2006 IEEE International Multitopic Conference最新文献

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Low Temperature Properties of Organic-Inorganic Ag / p-CuPc/ n-GaAs / Ag Photoelectric Sensor 有机-无机Ag / p-CuPc/ n-GaAs / Ag光电传感器的低温性能
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358215
K.S. Karimova, I. Qazi, M. Fedorov, T. A. Khan, U. Shafique
{"title":"Low Temperature Properties of Organic-Inorganic Ag / p-CuPc/ n-GaAs / Ag Photoelectric Sensor","authors":"K.S. Karimova, I. Qazi, M. Fedorov, T. A. Khan, U. Shafique","doi":"10.1109/INMIC.2006.358215","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358215","url":null,"abstract":"A thin organic film of p-type semiconducting copper phthalocynanine (CuPc) was deposited by vacuum evaporation on an n-type GaAs single-crystal semiconductor substrate. The fabricated Ag/CuPc/n-GaAs/Ag sensor was carried through an ageing process to stabilize the parameters. Voltage-current characteristics and photoelectrical response of the sensor were investigated at a wide temperature interval of 82 K to 350 K. Photoelectric characteristics were measured under nonmodulated filament-lamp illumination. It was observed that sensor parameters such as: rectification ratio; threshold voltage; junction, shunt and series resistances; open-circuit voltage and short circuit current are temperature dependent. It was found that wide-range voltage-current characteristics of the sensor may be described similar to that of a Schottky barrier diode. Using the experimental data on voltage-current characteristics and absorbance of the CuPc films the energy-band diagram of the p-CuPc/n-GaAs heterojunction was developed. It was shown that data obtained from simulation of an equivalent circuit of photoelectric sensor agreed with experimental results.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"57 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120899459","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
Multicode Multicarrier Interleave Division Multiple Access Communication 多码多载波交错分多址通信
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358132
H. Rehman, I. Zaka, Muhammad Naeem, Syed Ismail Shah, J. Ahmad
{"title":"Multicode Multicarrier Interleave Division Multiple Access Communication","authors":"H. Rehman, I. Zaka, Muhammad Naeem, Syed Ismail Shah, J. Ahmad","doi":"10.1109/INMIC.2006.358132","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358132","url":null,"abstract":"A new mulitcode multicarrier interleave division multiple access (MC-MC-IDMA) system is proposed and analyzed in frequency selective channels. The system supports different modulation schemes for variables data rates. Each user transmits his message by choosing a sequence from an orthogonal code-set. An MC-MC-IDMA system achieves spreading gains both in time and frequency domains. Bit error rate of the system is derived and simulation results are presented.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128627832","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
Direct Sliding-Mode Controller Design for a 6DOF Stewart Manipulator 六自由度Stewart机械臂直接滑模控制器设计
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358204
S. Iqbal, A. I. Bhatti
{"title":"Direct Sliding-Mode Controller Design for a 6DOF Stewart Manipulator","authors":"S. Iqbal, A. I. Bhatti","doi":"10.1109/INMIC.2006.358204","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358204","url":null,"abstract":"The focus is on direct sliding-mode control design for tracking and regulation of a Stewart platform without any apriori knowledge of the system's mass properties in presence of nonlinearities. The position and velocities are the major inputs to the controller. The appropriately chosen sliding surfaces isin R6, composed of system states vectors, proper choice of reachability gains drive the system to stable manifold and then slide it to an equilibrium point. It leads us to a control law which clearly deals with nominal performance and robust stability. The resulting dynamic feedback is shown to provide chatter-free control. The controller is based on generalized Lyapunov approach and guarantees global asymptotic and exponential convergence. The control performance of the proposed algorithm is verified by computer simulations. These simulations show that system follows the desired trajectory and errors efficiently converged to zero.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128776035","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: 12
Motion Segmentation through Incremental Hierarchical Clustering 基于增量层次聚类的运动分割
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358150
S. Shah, M. Usman Naseem, Saif-ur-Rehman, A. Karim
{"title":"Motion Segmentation through Incremental Hierarchical Clustering","authors":"S. Shah, M. Usman Naseem, Saif-ur-Rehman, A. Karim","doi":"10.1109/INMIC.2006.358150","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358150","url":null,"abstract":"Motion segmentation is a key step in many applications such as video surveillance, medical decision support, and target tracking. Motion segmentation is challenging because of the large amounts of data to be processed and the real-time requirements of the applications. The k-means clustering algorithm has often been used for motion segmentation. However, the k-means algorithm is computationally expensive and requires prior knowledge of the number of clusters. In this paper, we present an approach for motion segmentation based on the incremental hierarchical clustering algorithm BIRCH. BIRCH is scalable and efficient because it processes data incrementally and is more accurate because it does not require prior knowledge of clusters. We describe our experiments using video from a Web cam and compare the performance of BIRCH and k-means clustering for motion segmentation. Our results confirm that our approach is more accurate and efficient as compared to the k-means based approach.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129034306","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
The Design, Performance and Comparison of Four Different Ku-Band Common-Source DROs 四种不同ku波段共源ro的设计、性能与比较
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358129
Y. Nadeem, M. Ihsan
{"title":"The Design, Performance and Comparison of Four Different Ku-Band Common-Source DROs","authors":"Y. Nadeem, M. Ihsan","doi":"10.1109/INMIC.2006.358129","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358129","url":null,"abstract":"This paper describes the design and performance of four Ku-band common-source dielectric resonator oscillators (DROs). The first uses open-circuited stubs at the source to create instability, while the second employs an additional dielectric resonator (DR) for the same purpose. The third has the source connected to a 50Omega impedance and the fourth has the source grounded. A comparison is made between the general characteristics of the four configurations.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125915928","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
An Integrated Technique for Trajectory Planning of Non-Holonomic Mobile Robot in Unstructured Environment 非结构环境下非完整移动机器人轨迹规划集成技术
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358203
M. Arshad, M. Choudhry
{"title":"An Integrated Technique for Trajectory Planning of Non-Holonomic Mobile Robot in Unstructured Environment","authors":"M. Arshad, M. Choudhry","doi":"10.1109/INMIC.2006.358203","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358203","url":null,"abstract":"Path planning is an important issue in mobile robots. When the environment consists of obstacles, path planning is to find a collision free path for mobile robot to move from starting position to the target location. This path planning should be optimal or must be near-optimal with respect to time, distance or energy. But distance is the most commonly adopted criterion. In this paper a new approach for the representation of dynamic environment has been presented. The integration of stationary and moving obstacles is the new work presented in this paper. Uncertainty in environment estimation has been taken into account by the probabilistic reasoning technique. Occupancy or risk of the probabilistic grid representation has been estimated for each cell using sensor data.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114245431","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 a Cellular Data Network using Generalised Processor Sharing Model 基于广义处理器共享模型的蜂窝数据网络性能评估
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358192
Z. Murtaza, V. Iversen, A. Rauf
{"title":"Performance Evaluation of a Cellular Data Network using Generalised Processor Sharing Model","authors":"Z. Murtaza, V. Iversen, A. Rauf","doi":"10.1109/INMIC.2006.358192","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358192","url":null,"abstract":"In this paper, we investigate the performance of a cellular network using an M/G/n-GPS queue to model the network nodes. We present the performance analysis of a queuing network having multiple chains of customers, using classical queuing networks theory. We only determine the performance evaluation of elastic data transfers in cellular networks. Hence all the chains are assumed to be closed chains. The state probabilities for the closed chains are obtained using multidimensional convolution algorithm and hence the performance measures are calculated which includes sojourn time and average number of customers at all nodes.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122451480","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
Affine Normalized Invariant functionals using Independent Component Analysis 使用独立分量分析的仿射归一化不变泛函
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358143
Asad Ali, A. Gilani, N. Memon
{"title":"Affine Normalized Invariant functionals using Independent Component Analysis","authors":"Asad Ali, A. Gilani, N. Memon","doi":"10.1109/INMIC.2006.358143","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358143","url":null,"abstract":"The paper presents a hybrid technique for affine invariant feature extraction with the view of object recognition based on parameterized contour. The presented technique first normalizes an input image by removing affine distortions using independent component analysis which also reduces the effect of noise introduced during contour parameterization. Then two invariant functionals are constructed, one using the normalized object contour and the other using the dyadic wavelet transform. Experimental results conducted using three different standard datasets confirm the validity of the proposed approach. Beside this the error rates obtained in terms of invariant stability are significantly lower when compared to other wavelet based techniques and the proposed invariants exhibit higher feature disparity than the method of Fourier descriptors.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115760955","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
Layout Analysis of Urdu Document Images 乌尔都语文献图像布局分析
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358180
F. Shafait, Adnan-ul-Hasan, Daniel Keysers, T. Breuel
{"title":"Layout Analysis of Urdu Document Images","authors":"F. Shafait, Adnan-ul-Hasan, Daniel Keysers, T. Breuel","doi":"10.1109/INMIC.2006.358180","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358180","url":null,"abstract":"Layout analysis is a key component of an OCR system. In this paper, we present a layout analysis system for extracting text-lines in reading order from Urdu document images. For this purpose, we evaluate an existing system for Roman script text on Urdu documents and describe its methods and the main changes necessary to adapt it to Urdu script. The main changes are: 1) the text-line model for Roman script is modified to adapt to Urdu text, 2) reading order of an Urdu document is defined. The method is applied to a collection of scanned Urdu documents from various books, magazines, and newspapers. The results show high text-line detection accuracy on scanned images of Urdu prose and poetry books and magazines. The algorithm also works reasonably well on newspaper images. We also identify directions for future work which may further improve the accuracy of the system.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116294753","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: 36
Evaluation and comparison of TCP and UDP over Wired-cum-Wireless LAN 有线无线局域网中TCP和UDP协议的评估与比较
2006 IEEE International Multitopic Conference Pub Date : 2006-12-01 DOI: 10.1109/INMIC.2006.358188
A. R. Rind, K. Shahzad, M. Qadir
{"title":"Evaluation and comparison of TCP and UDP over Wired-cum-Wireless LAN","authors":"A. R. Rind, K. Shahzad, M. Qadir","doi":"10.1109/INMIC.2006.358188","DOIUrl":"https://doi.org/10.1109/INMIC.2006.358188","url":null,"abstract":"The great deployment of IEEE 802.11 wireless networks has spawned momentous challenges for future data communication. Consumers often criticize the connectivity and performance related issues. Many of the routing protocols are suggested for wireless LAN. Prominent steps for selection of routing protocols according to the nature of network environment produce better performance. We use DSDV routing protocols to evaluate the performance of TCP & UDP over wired cum wireless LAN. We use Network Simulator-2 with different parameters, generating different speeds of mobile nodes and different link capacity (bandwidth) with same packet size in every scenario. We compare TCP and UDP in terms of throughput, good put and other significant parameters to justify their performance in particular circumstances.","PeriodicalId":171255,"journal":{"name":"2006 IEEE International Multitopic Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114785820","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
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