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Education, IEEE Transactions on

Issue 3 • Date Aug. 2002

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Displaying Results 1 - 13 of 13
  • Guest editorial: the educational activities of the IEEE history center

    Publication Year: 2002 , Page(s): 205 - 208
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    Freely Available from IEEE
  • On lag controllers: design and implementation

    Publication Year: 2002 , Page(s): 285 - 288
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (196 KB)  

    Sometimes it is inconvenient or expensive to open the loop of a system to insert lag controllers-for instance, when this system is an open-loop system. A new controller structure where the loop is not opened, and that allows the design of lag controllers as in the case where one can open the loop, is presented. This result can be used by educators in undergraduate courses that deal with classic control system theory, because it allows a better comprehension of the concept of lag compensation and provides a new method for its design and implementation. An example illustrates the application of the proposed method. View full abstract»

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  • An introductory digital design course using a low-cost autonomous robot

    Publication Year: 2002 , Page(s): 289 - 296
    Cited by:  Papers (21)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (308 KB) |  | HTML iconHTML  

    This paper describes a new digital design laboratory developed for undergraduate students in this electrical and computer engineering curriculum. A top-down rapid prototyping approach with commercial computer-aided design tools and field-programmable logic devices (FPLDs) is used for laboratory projects. Students begin with traditional transistor-transistor logic-based projects containing a few gates and progress to designing a simple 16-bit computer, using very high-speed integrated circuits hardware description language (VHDL) synthesis tools and an FPLD. To help motivate students, the simple computer design is programmed to control a small autonomous robot with two servo drive motors and several sensors. The laboratory concludes with a team-based design project using the robot. View full abstract»

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  • Understanding and implementing computer network protocols through a lab project

    Publication Year: 2002 , Page(s): 276 - 284
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (287 KB) |  | HTML iconHTML  

    This paper describes a lab project in computer communications and networks for senior undergraduate students in computer science and engineering. Given detailed specifications, students are asked to implement a data link layer (DLL) that integrates correctly with other provided layers to obtain a complete working network stack. This lab gives the students the opportunity to learn how to read formal specifications for a network project and write a complete piece of source code. It provides a comprehensive environment for students to write software for a network protocol, test and debug it, and observe its working behavior. In this paper, the authors present a technical description of the project and a discussion of related educational issues. View full abstract»

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  • Patterns in student-student commenting

    Publication Year: 2002 , Page(s): 262 - 267
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (215 KB) |  | HTML iconHTML  

    The virtual classroom under consideration supports students submitting exercise answers online and comments on exercise answers that include numerical scores. Automated quality control procedures track the student scores. The patterns of scores vary as a function of the pragmatic import of these student scores. Clear consequences of commenting must be enforced in the classroom before students will engage in fruitful commenting. The managerial problems that arise in courses that rely on extensive student-student commenting can be partially solved with automated tools that guide students to comment in fair and flexible ways. View full abstract»

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  • Teaching nonlinear modeling, simulation, and control of electronic power converters using MATLAB/SIMULINK

    Publication Year: 2002 , Page(s): 253 - 261
    Cited by:  Papers (39)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (331 KB)  

    This paper describes an efficient method to teach analysis and simulation of power electronic converters to undergraduate students, using system level nonlinear state-space models. System-level modeling of power electronic converters reproduces only the ideal switching behavior of the semiconductors and is a useful concept for the numerical simulation of power converters, since simulations present no convergence problems and require little computational time. Switched state-space models, programmed in the MATLAB/SIMULINK software package, can be advantageously used to simulate power converters at the system level and also to design and study their controllers. Switched state-space nonlinear models should be obtained using a theoretical framework suitable for the enhanced control of variable structure power systems. Since the method is inherently nonlinear, no approximated linear models are needed; and since state-space models are used, modern control techniques (sliding mode, neural networks, fuzzy logic) for power converters can easily be used. This paper summarizes the proposed methodology and gives some examples. View full abstract»

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  • An automatic evaluation system for technical education at the University level

    Publication Year: 2002 , Page(s): 268 - 275
    Cited by:  Papers (12)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (426 KB)  

    A Web-based automatic evaluation system for students of engineering faculties is described. The system, named Test on Line (ToL), can verify the possession of ideas, the ability to combine them into deductions, and the capability to make simple numerical calculations for otherwise practical exercises. ToL has been extensively in use for basic physics courses at the engineering faculties of the Turin Politecnico since the beginning of 1999. Consequently, the accumulated statistical data amount to approximately four thousand individual tests and show the credibility both of the method and of its results. ToL generates, for each student, a proposed mark (which can be verified by an oral colloquium on demand by the candidate) and a simple cognitive profile showing possible cognitional, logical, or practical weaknesses in the different topics of the study matter. The core of the platform consists of a database of questions, a selection algorithm, and an evaluation procedure. The instrument and the method are being refined; the major improvements under construction are listed. View full abstract»

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  • Application of SPICE simulation to study WDM and SCM systems using EDFAs with chirping

    Publication Year: 2002 , Page(s): 238 - 244
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (310 KB) |  | HTML iconHTML  

    The authors have proposed an equivalent electrical circuit model of erbium-doped fiber amplifiers (EDFAs), including the chirping effect for teaching or studying the distortions and performance of lightwave transmission systems. Through the aid of a SPICE circuit simulator, its validity is demonstrated by analyzing the cross modulations of an eight-channel wavelength division multiplexing system. The intermodulations in an amplitude modulation-subcarrier multiplexing (SCM) system are demonstrated. The channel-number dependence of the composite second-order distortion in a 42-channel SCM system is shown, and its applications to analyze other systems are also discussed. View full abstract»

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  • Teaching transmission lines: a project of measurement and simulation

    Publication Year: 2002 , Page(s): 245 - 252
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (287 KB)  

    A junior-year project for a course in electromagnetic waves is described, including the theory, hardware, and basic measurements. The essence of the project is to simulate transmission-line properties based upon theory developed in the classroom and to measure those properties in the laboratory for comparison. The equipment chosen is readily available and inexpensive, but is used here to illustrate concepts usually requiring an expensive vector network analyzer. The transmission-line properties of insertion loss, input impedance, and crosstalk are measured as a function of frequency on Category 5 cable. The transmission-line phase shift, propagation velocity, attenuation, characteristic impedance, impedance under various transmission-line configurations, and crosstalk are modeled and measured. Measured and theoretical results are in good agreement, reinforcing the strength of the underlying theory for the student. Evaluation of the project over a three-year period with more than 120 students is very positive in terms of developing confidence in and understanding of this abstract material. View full abstract»

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  • Teaching performance evaluation of multiprocessor architectures with Mathcad and MathConnex

    Publication Year: 2002 , Page(s): 231 - 237
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (688 KB) |  | HTML iconHTML  

    This paper presents the development of an interactive environment that facilitates the performance evaluation of multiprocessor architectures with Mathcad and MathConnex. This environment was primarily designed for utilization as an interactive computer laboratory exercise for teaching undergraduate students of the Computer Science Department at the Aristotle University of Thessaloniki, Greece. View full abstract»

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  • Applications of SPICE simulation software to the study of reliability and availability in electrical engineering education

    Publication Year: 2002 , Page(s): 209 - 217
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (331 KB) |  | HTML iconHTML  

    The effectiveness of SPICE in calculating probabilities, reliability, steady-state availability, and mean time to failure of repairable systems described by Markov models is demonstrated. Two examples are presented. The first example is a two-unit, warm standby, microcomputer system with self-reset function and repair facility. The second example is a robotic system comprising two identical robots and one safety system. In both cases, the results obtained using SPICE are compared with previously published results obtained using the Laplace transform method. Full SPICE listings are included. View full abstract»

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  • Undergraduate, laser physics laboratory

    Publication Year: 2002 , Page(s): 227 - 230
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (196 KB) |  | HTML iconHTML  

    The authors have developed a senior-level undergraduate laboratory course with an integrated theme of lasers and optics to teach experimental methods and reinforce fundamental physics concepts. This laboratory includes six experiments concerning modulators, laser kinetics, waveguiding, CO2 laser operation, ultrashort pulse characterization, and nonlinear optics. The authors discuss the philosophy and structure of this course. View full abstract»

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  • A MATLAB-based control systems laboratory experience for undergraduate students: toward standardization and shared resources

    Publication Year: 2002 , Page(s): 218 - 226
    Cited by:  Papers (20)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (257 KB) |  | HTML iconHTML  

    This paper seeks to begin a discussion with regard to developing computer aided control system design (CACSD) tools to promote undergraduate controls laboratory development. The advocated CACSD design tools are based on the popular, commercially available MATLAB environment, the Simulink toolbox, and the Real-Time Workshop toolbox. This paper describes how these tools can be utilized to address several issues that are confronted by control systems educators including: standardization, budget constraints, and limited resources. Specifically, by confronting the standardization issue, the following advantages are realized for laboratory development: (1) the required computer hardware will be low cost; (2) commercially available plants from different manufacturers can be supported under the same CACSD environment with no hardware modifications; (3) both the Windows and Linux operating systems can be supported via the MATLAB based Real-Time Windows Target and the Quality Real-Time Systems (QRTS) based Real-Time Linux Target; and (4) the Simulink block diagram approach can be utilized to prototype control strategies, thereby, eliminating the need for low level programming skills. The advantages related to standardization of the CACSD design tools will enable educators to confront the additional budget constraint and limited teaching resources issue by facilitating: (1) the sharing of laboratory resources within each university (i.e., between departments); (2) the development of Internet laboratory experiences for students (i.e., between universities); and (3) the initiation of an Internet-based archive of laboratory tutorials and Simulink files for in-house developed plants and commercially available plants. View full abstract»

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Aims & Scope

Educational research, methods, materials, programs, and technology in electrical engineering, computer engineering, and fields within the scope of interest of IEEE.

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Meet Our Editors

Editor-in-Chief
Jeffrey E. Froyd
Texas A&M University