Application of SPICE simulation to study WDM and SCM systems using EDFAs with chirpingIEEE Transactions on Education - Tập 45 Số 3 - Trang 238-244 - 2002
Jau-Ji Jou, Cheng-Kuang Liu
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. ...... hiện toàn bộ
#Wavelength division multiplexing #Communication engineering education #SPICE #Optical fiber communication #Intermodulation distortion #Optical modulation #Amplitude modulation
Teaching transmission lines: a project of measurement and simulationIEEE Transactions on Education - Tập 45 Số 3 - Trang 245-252 - 2002
B.G. Colpitts
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 illustrat...... hiện toàn bộ
#Transmission line theory #Electrical engineering education #Impedance measurement #Crosstalk #Electromagnetic propagation #Student experiments #Loss measurement
Teaching nonlinear modeling, simulation, and control of electronic power converters using MATLAB/SIMULINKIEEE Transactions on Education - Tập 45 Số 3 - Trang 253-261 - 2002
V.F. Pires, J.F.A. Silva
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...... hiện toàn bộ
#DC-DC power conversion #AC-DC power conversion #Pulse width modulated power converters #Power engineering education #Computer aided instruction
Undergraduate, laser physics laboratoryIEEE Transactions on Education - Tập 45 Số 3 - Trang 227-230 - 2002
R.J. Knize, W.R. White, B.V. Zhdanov
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, CO/sub 2/ laser operation, ultrashort pulse characterization, and nonlinear optics. The authors discuss the philo...... hiện toàn bộ
#Physics #Student experiments #Gas lasers #Optical modulation #Optical waveguides #Optical frequency conversion #Solid lasers
Understanding and implementing computer network protocols through a lab projectIEEE Transactions on Education - Tập 45 Số 3 - Trang 276-284 - 2002
M.W. El-Kharashi, G. Darling, B. Marykuca, G.C. Shoja
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 forma...... hiện toàn bộ
#Computer science education #Transport protocols #Student experiments #Computer networks #Software debugging #Software testing #Open systems
Patterns in student-student commentingIEEE Transactions on Education - Tập 45 Số 3 - Trang 262-267 - 2002
R. Rada, Ke Hu
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...... hiện toàn bộ
#Quality control #Computer science education