{"title":"Design and simulation of a MMIC for dual band satellite communication","authors":"G. Kiani, M.M. Ahmed, S. I. Sohail","doi":"10.1109/INMIC.2003.1416699","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416699","url":null,"abstract":"In this study a wideband coplanar active microstrip integrated antenna has been designed for satellite related applications. The frequency for this particular design ranges from 3.7 to 12.2 GHz. This covers C and K bands which are 3.7 to 4.2 GHz and 11.7 to 12.2 GHz respectively. To allow the dual band reception the antenna was designed to reject the other frequencies and thus behaves like a band pass filter for C and K bands. The proposed designed is based on GaAs substrate which contains gold patches of different width and height ratios as a passive element of the antenna. Each patch is designed for one band and the signal is then combined though a microwave coupler to be fed to an active device. The active device of the system is a GaAs MESFET which offers good gain in the system. A complete design procedure and analysis has been presented and the established design could provide an economical solution for satellite communication involving dual channel receivers","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125487953","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}
{"title":"Bond graph modeling and simulation of mechatronic systems","authors":"M. Malik, A. Khurshid","doi":"10.1109/INMIC.2003.1416738","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416738","url":null,"abstract":"The traditional modeling and simulation techniques for dynamic systems are generally adequate for single-domain systems only. Mechatronic systems, being a mix of mechanical and electronic systems, deal with multi-domain systems. Such systems may typically include translational, rotational, thermofluid, electrical, electromechanical and electronic systems. Modeling and simulation of such multi-domain systems pose formidable new challenges and, hence, demand new strategies and techniques for reliable solutions. The bond graph method (BGM) is rapidly emerging to offer a new modeling and simulation methodology that is ideally suited to effectively unify knowledge pertaining to multi-domain systems for mechatronic applications. The BGM combined with genetic programming (GP) offers tremendous opportunities in artificial intelligence, image processing, and robotic and industrial automation, The extension of BGM for applications to fields such as social behavior, economics and operational research is a very active topic of current research. This work illustrates the methodology offered by BGM for modeling and simulation of mechatronic systems.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126572341","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}
{"title":"Nanostructured aluminium-diamond composites for thermal management applications","authors":"F. A. Khalid, O. Beffort, U. E. Klotz, P. Gasser","doi":"10.1109/INMIC.2003.1416771","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416771","url":null,"abstract":"The nanostructure and morphology of Al-diamond composite material produced by pressurised liquid metal infiltration have been studied. These composites may have the potential for applications in the thermal management and electronic packaging industry. The composite samples produced by using nanosized diamond powder were examined by using advanced analytical techniques. It was demonstrated that the liquid metal infiltration technique was suitable for the production of Al-diamond composites. The samples revealed more uniform dispersion of diamond particles. Occasionally plate-shaped Al/sub 4/C/sub 3/ particles formed at the interface between Al and diamond particles were also detected. It can be suggested that these carbides may have formed in association with the ultra-thin amorphous graphite layer at the interfacial region.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"314 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127904564","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}
{"title":"Tracking multiple objects using modified track-observation assignment weight approach for data association","authors":"D. Mohammad, A. Hussain","doi":"10.1109/INMIC.2003.1416743","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416743","url":null,"abstract":"The problem of tracking multiple targets from noisy observation data using a modified track splitting algorithm for data assignment has been discussed In this work. Simulation studies have shown the relative improvement in performance for the selection of hypotheses from all the possible assignments generated during the current scan, using the proposed modified track splitting algorithm compared with a standard version of this algorithm.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124886033","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}
{"title":"Crime investigation and analysis using neural nets","authors":"Q. Memon, S. Mehboob","doi":"10.1109/INMIC.2003.1416748","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416748","url":null,"abstract":"Crime investigation, with special reference to homicide cases, involves intensive and phase wise collection of data. We discuss a technique for comparing previously available data of the homicide cases with the current one. The system to be developed here is based upon an artificial neural network and is intended to be used by homicide detectives and other special task personnel for providing improved and sound reports to the courts of justice. The objective is thus to provide an automated crime analysis system (ACS) which is based upon an artificial neural network (ANN). The system also provides a crime visualization feature that gives the user a pictorial representation of crime details. This feature uses an incremental approach to represent the suspects and their concerns. Thus an elaborate visual description is achieved.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114718029","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}
{"title":"Controller design using fuzzy logic for a twin rotor MIMO system","authors":"B.U. Islam, N. Ahmed, D.L. Bhatti, S. Khan","doi":"10.1109/INMIC.2003.1416722","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416722","url":null,"abstract":"The paper discusses the design of a fuzzy logic controller for a twin rotor MIMO system. The system has three degrees of freedom, but we have designed the controller for two degrees of freedom (DOF) only, i.e., travel and elevation. The controller is designed such that a change in one degree should have minimum effect on the other and overall the system should remain stable. We have designed two fuzzy logic controllers: one for travel control and one for elevation: both are designed in MATLAB and have Sugeno inference. For the twin rotor MIMO system, commonly known as the helicopter problem, many conventional controllers exist. Our controller's performance had to be better than, or at least equal to, their's. To test the controller on a practical system was not possible, therefore we used simulations to benchmark the performance of the fuzzy logic controller. The simulation results show that the system performance with a fuzzy logic controller is superior to the system performance with a conventional PID or LQR controller, over the whole range of operating conditions.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123907754","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}
{"title":"New efficient algorithm for the minimization of controller fragility using algebraic Riccati equation (ARE) and analyzing the results for different controllers","authors":"K. Shufiq, M. Yousuf, Ashfuq A Mian","doi":"10.1109/INMIC.2003.1416737","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416737","url":null,"abstract":"We present the solution to the problem of fragility minimization using the algebraic Ricatti equation (ARE) from the optimal control arsenal. Fragile controllers are controllers which must be implemented exactly otherwise performance degradation or instability results. Formerly, the gradient flow technique (GFT) was presented as a tool to minimize the controller fragility, but the idea proved to be cumbersome and computationally inefficient. On the other hand, the algorithm using the algebraic Ricatti equation (ARE) brings up the result with less execution time along with ease of understanding. Moreover, the solution to the problem of multiple poles has also been given In this work. Finally, the optimization results obtained from these different controllers have been discussed.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124791366","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}
{"title":"3D reconstruction and model acquisition of objects in real world scenes using stereo imagery","authors":"M. Ali, J. R. Shah, M. Ahmed","doi":"10.1109/INMIC.2003.1416611","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416611","url":null,"abstract":"Recently, the use of three dimensional computer models has greatly increased, in part due to the availability of fast, inexpensive hardware and technologies like VRML-ready Internet browsers. These models often represent objects in real world scenes and are typically built by hand using CAD software, an error-prone and time consuming process. The paper outlines a simple and efficient method based on passive stereo imaging techniques by which these models may be acquired, processed and utilized with little effort. The described method extracts the 3D geometrical data from the stereo images, for the purpose of creating realistic 3D models. The approach uses calibrated cameras","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126358390","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}
{"title":"New neural network based mobile location estimation in urban propagation models","authors":"J. Muhammad, A. Hussain, W.M. Ahmed","doi":"10.1109/INMIC.2003.1416679","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416679","url":null,"abstract":"Location estimation finds its applications in many important decisions in cellular networks. Hand offs, cellular fraud detection and location sensitive billing are some of the examples. Many different techniques are currently in use. This work first gives an overview of conventional location estimation techniques and applications, and a new signal-strength based neural network technique is then presented. A mobile architecture based on a simulated urban environment is used to assess the generalization performance of the feed forward multi-layered perceptron (MLP) neural network.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126646361","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}
Fahd Javed, Asim Munawar, Omer Qadir, Shoab A. Khan, Qayyum
{"title":"Design and implementation of a programmable processor optimized for table driven solutions and its application in mobile ad-hoc networks","authors":"Fahd Javed, Asim Munawar, Omer Qadir, Shoab A. Khan, Qayyum","doi":"10.1109/INMIC.2003.1416721","DOIUrl":"https://doi.org/10.1109/INMIC.2003.1416721","url":null,"abstract":"We present a programmable processor optimized for table driven solutions. Most algorithms in emerging and relatively unexplored technologies require manipulation of large amounts of data and the maintenance of databases. The processors currently available in hand-held devices are incapable of this kind of processing within the timeframe required. The work presents a solution to this in the form of a programmable processor. The processor includes a fast data manipulation unit and a standard general-purpose processor core. Data is maintained and managed internally. Accelerator mode operation is also possible, using library routines already developed. Comparisons with current PDA processors show a massive increase in efficiency. The paper also describes the results of operation using OLSR (optimized link state routing), a table driven routing protocol for MANETs.","PeriodicalId":253329,"journal":{"name":"7th International Multi Topic Conference, 2003. INMIC 2003.","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126817149","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}